./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_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_29-multiple-protecting2-vesal_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 14:49:08,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:08,593 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:08,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:08,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:08,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:08,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:08,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:08,628 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:08,631 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:08,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:08,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:08,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:08,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:08,633 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:08,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:08,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:08,634 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:08,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:08,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:08,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:08,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:08,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:08,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:08,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:08,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:08,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:08,636 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:08,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:08,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:08,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:08,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:08,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:08,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:08,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:08,640 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:08,640 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:08,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:08,640 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:08,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:08,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:08,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:08,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:08,875 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:08,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 14:49:10,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:10,192 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:10,194 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 14:49:10,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340f2eac2/ede949dc00c94985a475d2db1fbb4b67/FLAG907c8d2ed [2024-01-27 14:49:10,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340f2eac2/ede949dc00c94985a475d2db1fbb4b67 [2024-01-27 14:49:10,216 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:10,216 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:10,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-01-27 14:49:10,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:10,312 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:10,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:10,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:10,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:10,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:10" (1/2) ... [2024-01-27 14:49:10,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19210c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:10, skipping insertion in model container [2024-01-27 14:49:10,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:10" (1/2) ... [2024-01-27 14:49:10,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e265fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:10, skipping insertion in model container [2024-01-27 14:49:10,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:10" (2/2) ... [2024-01-27 14:49:10,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19210c9f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10, skipping insertion in model container [2024-01-27 14:49:10,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:10" (2/2) ... [2024-01-27 14:49:10,323 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:10,356 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:10,357 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-01-27 14:49:10,357 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:10,358 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g2 [2024-01-27 14:49:10,358 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-01-27 14:49:10,358 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-01-27 14:49:10,358 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g2 [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 1 <= g2 [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] 1 <= g2 [2024-01-27 14:49:10,359 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 1 <= g2 [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= g2 [2024-01-27 14:49:10,360 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g2 <= 2147483646 [2024-01-27 14:49:10,361 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 14:49:10,361 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:49:10,361 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 14:49:10,361 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g2 <= 2147483646 [2024-01-27 14:49:10,361 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= g2 [2024-01-27 14:49:10,362 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 14:49:10,362 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 14:49:10,362 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-27 14:49:10,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:10,552 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-27 14:49:10,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:10,694 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:10,704 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_29-multiple-protecting2-vesal_true.i[1103,1116] [2024-01-27 14:49:10,705 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 [2024-01-27 14:49:10,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:10,813 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:10,814 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10 WrapperNode [2024-01-27 14:49:10,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:10,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:10,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:10,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:10,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,864 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-01-27 14:49:10,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:10,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:10,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:10,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:10,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,894 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-27 14:49:10,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:10,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:10,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:10,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:10,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (1/1) ... [2024-01-27 14:49:10,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:10,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:10,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:49:10,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:49:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:49:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:49:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:49:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:49:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:49:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 14:49:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 14:49:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:49:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:10,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:10,995 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:49:11,153 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:11,156 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:11,363 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:11,364 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:11,526 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:11,528 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:49:11,528 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:11 BoogieIcfgContainer [2024-01-27 14:49:11,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:11,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:11,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:11,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:11,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:10" (1/4) ... [2024-01-27 14:49:11,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe3b258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:11, skipping insertion in model container [2024-01-27 14:49:11,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:10" (2/4) ... [2024-01-27 14:49:11,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe3b258 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:11, skipping insertion in model container [2024-01-27 14:49:11,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:10" (3/4) ... [2024-01-27 14:49:11,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe3b258 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:11, skipping insertion in model container [2024-01-27 14:49:11,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:11" (4/4) ... [2024-01-27 14:49:11,537 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-27 14:49:11,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:11,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-01-27 14:49:11,551 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:11,604 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-27 14:49:11,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 211 flow [2024-01-27 14:49:11,679 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2024-01-27 14:49:11,679 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:49:11,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 3/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-01-27 14:49:11,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 211 flow [2024-01-27 14:49:11,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 201 flow [2024-01-27 14:49:11,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:11,712 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;@4e028733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:11,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-01-27 14:49:11,716 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:11,716 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:11,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:11,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:11,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:11,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:11,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 11350, now seen corresponding path program 1 times [2024-01-27 14:49:11,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:11,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253234205] [2024-01-27 14:49:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:11,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:11,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:11,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253234205] [2024-01-27 14:49:11,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253234205] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:11,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:11,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:11,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736893099] [2024-01-27 14:49:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:11,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:11,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:11,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 102 [2024-01-27 14:49:11,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:11,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:11,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 102 [2024-01-27 14:49:11,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:12,255 INFO L124 PetriNetUnfolderBase]: 324/1148 cut-off events. [2024-01-27 14:49:12,255 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:12,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1148 events. 324/1148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7713 event pairs, 116 based on Foata normal form. 91/1060 useless extension candidates. Maximal degree in co-relation 1831. Up to 605 conditions per place. [2024-01-27 14:49:12,263 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 55 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-27 14:49:12,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 109 transitions, 335 flow [2024-01-27 14:49:12,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:12,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-01-27 14:49:12,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7581699346405228 [2024-01-27 14:49:12,275 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 201 flow. Second operand 3 states and 232 transitions. [2024-01-27 14:49:12,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 109 transitions, 335 flow [2024-01-27 14:49:12,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:49:12,279 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 208 flow [2024-01-27 14:49:12,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-01-27 14:49:12,283 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2024-01-27 14:49:12,283 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 208 flow [2024-01-27 14:49:12,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:12,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:12,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:49:12,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:12,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:12,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:12,285 INFO L85 PathProgramCache]: Analyzing trace with hash 338605871, now seen corresponding path program 1 times [2024-01-27 14:49:12,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:12,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522912051] [2024-01-27 14:49:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:12,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:12,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:12,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522912051] [2024-01-27 14:49:12,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522912051] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:12,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:12,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51601184] [2024-01-27 14:49:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:12,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:12,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:12,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:12,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:12,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 102 [2024-01-27 14:49:12,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:12,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:12,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 102 [2024-01-27 14:49:12,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:12,583 INFO L124 PetriNetUnfolderBase]: 160/692 cut-off events. [2024-01-27 14:49:12,583 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-27 14:49:12,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 692 events. 160/692 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4252 event pairs, 126 based on Foata normal form. 134/767 useless extension candidates. Maximal degree in co-relation 1118. Up to 330 conditions per place. [2024-01-27 14:49:12,587 INFO L140 encePairwiseOnDemand]: 91/102 looper letters, 43 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-27 14:49:12,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 100 transitions, 312 flow [2024-01-27 14:49:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-27 14:49:12,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2024-01-27 14:49:12,593 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 208 flow. Second operand 4 states and 290 transitions. [2024-01-27 14:49:12,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 100 transitions, 312 flow [2024-01-27 14:49:12,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:12,597 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 190 flow [2024-01-27 14:49:12,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-01-27 14:49:12,598 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2024-01-27 14:49:12,598 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 190 flow [2024-01-27 14:49:12,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:12,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:12,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:12,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:12,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:12,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2126412980, now seen corresponding path program 1 times [2024-01-27 14:49:12,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:12,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217640956] [2024-01-27 14:49:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217640956] [2024-01-27 14:49:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217640956] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:12,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:12,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145809070] [2024-01-27 14:49:12,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:12,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:12,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:12,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:12,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 102 [2024-01-27 14:49:12,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:12,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:12,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 102 [2024-01-27 14:49:12,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:12,887 INFO L124 PetriNetUnfolderBase]: 425/1159 cut-off events. [2024-01-27 14:49:12,887 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-01-27 14:49:12,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1159 events. 425/1159 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6734 event pairs, 357 based on Foata normal form. 91/1200 useless extension candidates. Maximal degree in co-relation 2075. Up to 755 conditions per place. [2024-01-27 14:49:12,891 INFO L140 encePairwiseOnDemand]: 85/102 looper letters, 55 selfloop transitions, 7 changer transitions 0/90 dead transitions. [2024-01-27 14:49:12,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 313 flow [2024-01-27 14:49:12,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:12,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-01-27 14:49:12,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-01-27 14:49:12,893 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 190 flow. Second operand 4 states and 234 transitions. [2024-01-27 14:49:12,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 313 flow [2024-01-27 14:49:12,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 307 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:12,895 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 163 flow [2024-01-27 14:49:12,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-01-27 14:49:12,895 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -20 predicate places. [2024-01-27 14:49:12,896 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 163 flow [2024-01-27 14:49:12,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:12,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:12,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:12,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:12,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:12,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:12,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1496816607, now seen corresponding path program 1 times [2024-01-27 14:49:12,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:12,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898230911] [2024-01-27 14:49:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:12,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:12,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898230911] [2024-01-27 14:49:12,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898230911] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:12,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:12,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:12,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140006778] [2024-01-27 14:49:12,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:12,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:12,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:12,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:13,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 102 [2024-01-27 14:49:13,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 163 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 14:49:13,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:13,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 102 [2024-01-27 14:49:13,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:13,154 INFO L124 PetriNetUnfolderBase]: 302/1031 cut-off events. [2024-01-27 14:49:13,154 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-01-27 14:49:13,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 1031 events. 302/1031 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6392 event pairs, 91 based on Foata normal form. 15/1004 useless extension candidates. Maximal degree in co-relation 1771. Up to 314 conditions per place. [2024-01-27 14:49:13,158 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 53 selfloop transitions, 22 changer transitions 0/110 dead transitions. [2024-01-27 14:49:13,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 110 transitions, 403 flow [2024-01-27 14:49:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:49:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:49:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 312 transitions. [2024-01-27 14:49:13,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.611764705882353 [2024-01-27 14:49:13,160 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 163 flow. Second operand 5 states and 312 transitions. [2024-01-27 14:49:13,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 110 transitions, 403 flow [2024-01-27 14:49:13,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 110 transitions, 373 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:13,162 INFO L231 Difference]: Finished difference. Result has 85 places, 85 transitions, 271 flow [2024-01-27 14:49:13,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=85, PETRI_TRANSITIONS=85} [2024-01-27 14:49:13,163 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -15 predicate places. [2024-01-27 14:49:13,163 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 85 transitions, 271 flow [2024-01-27 14:49:13,164 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 14:49:13,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:13,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:13,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:13,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:13,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:13,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2039132503, now seen corresponding path program 1 times [2024-01-27 14:49:13,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:13,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530565879] [2024-01-27 14:49:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:13,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:13,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:13,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530565879] [2024-01-27 14:49:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530565879] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:13,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:13,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:13,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353160111] [2024-01-27 14:49:13,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:13,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:13,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:13,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 102 [2024-01-27 14:49:13,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:13,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 102 [2024-01-27 14:49:13,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:13,385 INFO L124 PetriNetUnfolderBase]: 219/776 cut-off events. [2024-01-27 14:49:13,386 INFO L125 PetriNetUnfolderBase]: For 426/441 co-relation queries the response was YES. [2024-01-27 14:49:13,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 776 events. 219/776 cut-off events. For 426/441 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4535 event pairs, 38 based on Foata normal form. 58/826 useless extension candidates. Maximal degree in co-relation 1470. Up to 245 conditions per place. [2024-01-27 14:49:13,388 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 59 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-01-27 14:49:13,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 105 transitions, 431 flow [2024-01-27 14:49:13,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-01-27 14:49:13,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6544117647058824 [2024-01-27 14:49:13,389 INFO L175 Difference]: Start difference. First operand has 85 places, 85 transitions, 271 flow. Second operand 4 states and 267 transitions. [2024-01-27 14:49:13,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 105 transitions, 431 flow [2024-01-27 14:49:13,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 105 transitions, 429 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-27 14:49:13,394 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 239 flow [2024-01-27 14:49:13,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-01-27 14:49:13,397 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -15 predicate places. [2024-01-27 14:49:13,397 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 239 flow [2024-01-27 14:49:13,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:13,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:13,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:13,397 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:13,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:13,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1769774713, now seen corresponding path program 1 times [2024-01-27 14:49:13,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:13,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674946624] [2024-01-27 14:49:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674946624] [2024-01-27 14:49:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674946624] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:13,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:13,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604472233] [2024-01-27 14:49:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:13,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:49:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:49:13,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:49:13,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 102 [2024-01-27 14:49:13,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:13,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 102 [2024-01-27 14:49:13,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:13,703 INFO L124 PetriNetUnfolderBase]: 233/786 cut-off events. [2024-01-27 14:49:13,703 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2024-01-27 14:49:13,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 786 events. 233/786 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4482 event pairs, 82 based on Foata normal form. 63/832 useless extension candidates. Maximal degree in co-relation 1549. Up to 190 conditions per place. [2024-01-27 14:49:13,705 INFO L140 encePairwiseOnDemand]: 88/102 looper letters, 37 selfloop transitions, 12 changer transitions 31/108 dead transitions. [2024-01-27 14:49:13,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 108 transitions, 487 flow [2024-01-27 14:49:13,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:49:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:49:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 339 transitions. [2024-01-27 14:49:13,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.553921568627451 [2024-01-27 14:49:13,707 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 239 flow. Second operand 6 states and 339 transitions. [2024-01-27 14:49:13,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 108 transitions, 487 flow [2024-01-27 14:49:13,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 108 transitions, 453 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 14:49:13,711 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 212 flow [2024-01-27 14:49:13,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-01-27 14:49:13,713 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -16 predicate places. [2024-01-27 14:49:13,713 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 212 flow [2024-01-27 14:49:13,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:13,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:13,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:49:13,715 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:13,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:13,715 INFO L85 PathProgramCache]: Analyzing trace with hash -479734769, now seen corresponding path program 1 times [2024-01-27 14:49:13,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:13,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219655320] [2024-01-27 14:49:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:13,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:13,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219655320] [2024-01-27 14:49:13,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219655320] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:13,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:13,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:49:13,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564981695] [2024-01-27 14:49:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:13,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:49:13,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:13,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:49:13,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:49:13,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-27 14:49:13,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:13,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-27 14:49:13,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:13,927 INFO L124 PetriNetUnfolderBase]: 37/229 cut-off events. [2024-01-27 14:49:13,927 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-01-27 14:49:13,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 229 events. 37/229 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 804 event pairs, 16 based on Foata normal form. 21/241 useless extension candidates. Maximal degree in co-relation 413. Up to 65 conditions per place. [2024-01-27 14:49:13,928 INFO L140 encePairwiseOnDemand]: 93/102 looper letters, 20 selfloop transitions, 6 changer transitions 17/67 dead transitions. [2024-01-27 14:49:13,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 282 flow [2024-01-27 14:49:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:13,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:13,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-01-27 14:49:13,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7573529411764706 [2024-01-27 14:49:13,930 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 212 flow. Second operand 4 states and 309 transitions. [2024-01-27 14:49:13,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 282 flow [2024-01-27 14:49:13,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 246 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-01-27 14:49:13,933 INFO L231 Difference]: Finished difference. Result has 70 places, 46 transitions, 148 flow [2024-01-27 14:49:13,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=70, PETRI_TRANSITIONS=46} [2024-01-27 14:49:13,934 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -30 predicate places. [2024-01-27 14:49:13,934 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 148 flow [2024-01-27 14:49:13,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:13,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:13,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:13,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:49:13,939 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-27 14:49:13,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash -108936621, now seen corresponding path program 1 times [2024-01-27 14:49:13,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:13,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571999148] [2024-01-27 14:49:13,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:13,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:49:14,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:14,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571999148] [2024-01-27 14:49:14,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571999148] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:14,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:14,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 14:49:14,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799594289] [2024-01-27 14:49:14,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:14,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 14:49:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:14,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 14:49:14,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-27 14:49:14,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-27 14:49:14,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:14,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:14,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-27 14:49:14,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:14,206 INFO L124 PetriNetUnfolderBase]: 15/124 cut-off events. [2024-01-27 14:49:14,206 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-01-27 14:49:14,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 124 events. 15/124 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 391 event pairs, 0 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 221. Up to 43 conditions per place. [2024-01-27 14:49:14,207 INFO L140 encePairwiseOnDemand]: 99/102 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-01-27 14:49:14,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 230 flow [2024-01-27 14:49:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-01-27 14:49:14,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7426470588235294 [2024-01-27 14:49:14,208 INFO L175 Difference]: Start difference. First operand has 70 places, 46 transitions, 148 flow. Second operand 4 states and 303 transitions. [2024-01-27 14:49:14,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 230 flow [2024-01-27 14:49:14,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:14,210 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-01-27 14:49:14,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-01-27 14:49:14,212 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -48 predicate places. [2024-01-27 14:49:14,212 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-01-27 14:49:14,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:49:14,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 48 remaining) [2024-01-27 14:49:14,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 48 remaining) [2024-01-27 14:49:14,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 48 remaining) [2024-01-27 14:49:14,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 48 remaining) [2024-01-27 14:49:14,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 48 remaining) [2024-01-27 14:49:14,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 48 remaining) [2024-01-27 14:49:14,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (27 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (25 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 48 remaining) [2024-01-27 14:49:14,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (21 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 48 remaining) [2024-01-27 14:49:14,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 48 remaining) [2024-01-27 14:49:14,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 48 remaining) [2024-01-27 14:49:14,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:49:14,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:14,249 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:49:14,249 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:49:14,253 INFO L503 ceAbstractionStarter]: Automizer considered 26 witness invariants [2024-01-27 14:49:14,253 INFO L504 ceAbstractionStarter]: WitnessConsidered=26 [2024-01-27 14:49:14,253 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:49:14 BasicIcfg [2024-01-27 14:49:14,253 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:49:14,254 INFO L158 Benchmark]: Toolchain (without parser) took 3942.04ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 90.8MB in the beginning and 189.8MB in the end (delta: -99.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,254 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:14,254 INFO L158 Benchmark]: Witness Parser took 3.03ms. Allocated memory is still 153.1MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:49:14,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.90ms. Allocated memory is still 153.1MB. Free memory was 90.8MB in the beginning and 66.4MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.87ms. Allocated memory is still 153.1MB. Free memory was 66.4MB in the beginning and 64.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,255 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 153.1MB. Free memory was 64.4MB in the beginning and 62.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,255 INFO L158 Benchmark]: RCFGBuilder took 619.40ms. Allocated memory is still 153.1MB. Free memory was 62.0MB in the beginning and 104.0MB in the end (delta: -42.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,255 INFO L158 Benchmark]: TraceAbstraction took 2722.98ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 103.4MB in the beginning and 189.8MB in the end (delta: -86.4MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-01-27 14:49:14,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 3.03ms. Allocated memory is still 153.1MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.90ms. Allocated memory is still 153.1MB. Free memory was 90.8MB in the beginning and 66.4MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.87ms. Allocated memory is still 153.1MB. Free memory was 66.4MB in the beginning and 64.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 153.1MB. Free memory was 64.4MB in the beginning and 62.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.40ms. Allocated memory is still 153.1MB. Free memory was 62.0MB in the beginning and 104.0MB in the end (delta: -42.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2722.98ms. Allocated memory was 153.1MB in the beginning and 281.0MB in the end (delta: 127.9MB). Free memory was 103.4MB in the beginning and 189.8MB in the end (delta: -86.4MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 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: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 698]: 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: 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: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 706]: 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: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: 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, 151 locations, 48 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: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 727 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 473 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 948 IncrementalHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 91 mSDtfsCounter, 948 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=4, InterpolantAutomatonStates: 34, 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, 0.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 569 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 14:49:14,276 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