./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 ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_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-ab2e0ac-m [2024-01-29 14:16:34,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:35,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:35,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:35,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:35,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:35,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:35,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:35,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:35,079 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:35,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:35,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:35,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:35,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:35,082 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:35,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:35,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:35,082 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:35,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:35,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:35,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:35,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:35,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:35,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:35,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:35,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:35,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:35,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:35,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:35,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:35,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:35,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:35,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:35,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:35,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:35,087 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:35,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:35,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:35,087 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:35,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:35,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:35,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:35,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:35,272 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:35,272 INFO L431 ainManager$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 [2024-01-29 14:16:36,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:36,555 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:36,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-29 14:16:36,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8143f78/52011da5d1144f57824e8940bbe57c87/FLAG187efe5d9 [2024-01-29 14:16:36,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a8143f78/52011da5d1144f57824e8940bbe57c87 [2024-01-29 14:16:36,591 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:36,591 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:36,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-01-29 14:16:36,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:36,676 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:36,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:36,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:36,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:36,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:36" (1/2) ... [2024-01-29 14:16:36,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcb0b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:36, skipping insertion in model container [2024-01-29 14:16:36,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:36" (1/2) ... [2024-01-29 14:16:36,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77547bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:36, skipping insertion in model container [2024-01-29 14:16:36,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:36" (2/2) ... [2024-01-29 14:16:36,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcb0b7b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:36, skipping insertion in model container [2024-01-29 14:16:36,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:36" (2/2) ... [2024-01-29 14:16:36,686 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:36,715 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:36,717 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-29 14:16:36,717 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-29 14:16:36,717 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-29 14:16:36,717 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:36,717 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= g2 [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g2 <= 2147483646 [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g2 [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 14:16:36,718 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g2 <= 2147483646 [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= g2 [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 1 <= g2 [2024-01-29 14:16:36,719 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:36,720 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 1 <= g2 [2024-01-29 14:16:36,720 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:36,720 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] 1 <= g2 [2024-01-29 14:16:36,720 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-01-29 14:16:36,720 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-01-29 14:16:36,721 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g2 [2024-01-29 14:16:36,721 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 14:16:36,721 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-29 14:16:36,721 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-01-29 14:16:36,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:36,927 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] [2024-01-29 14:16:37,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:37,071 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:37,082 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] [2024-01-29 14:16:37,083 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 [2024-01-29 14:16:37,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:37,193 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:37,193 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37 WrapperNode [2024-01-29 14:16:37,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:37,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:37,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:37,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:37,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,228 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-01-29 14:16:37,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:37,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:37,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:37,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:37,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,278 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 2, 5, 5]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 0, 5, 5]. The 1 writes are split as follows [0, 0, 1, 0, 0]. [2024-01-29 14:16:37,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:37,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:37,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:37,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:37,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (1/1) ... [2024-01-29 14:16:37,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:37,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:37,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:16:37,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:16:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:16:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:16:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:16:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:16:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:16:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-29 14:16:37,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-29 14:16:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:16:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:16:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:16:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:16:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:37,377 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:16:37,490 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:37,491 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:37,782 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:37,783 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:37,907 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:37,907 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:16:37,914 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:37 BoogieIcfgContainer [2024-01-29 14:16:37,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:37,917 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:37,917 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:37,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:37,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:36" (1/4) ... [2024-01-29 14:16:37,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cfd3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:37, skipping insertion in model container [2024-01-29 14:16:37,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:36" (2/4) ... [2024-01-29 14:16:37,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cfd3f9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:37, skipping insertion in model container [2024-01-29 14:16:37,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:37" (3/4) ... [2024-01-29 14:16:37,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cfd3f9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:37, skipping insertion in model container [2024-01-29 14:16:37,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:37" (4/4) ... [2024-01-29 14:16:37,923 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-29 14:16:37,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:37,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-01-29 14:16:37,936 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:38,013 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 14:16:38,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 211 flow [2024-01-29 14:16:38,092 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2024-01-29 14:16:38,093 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:16:38,097 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. [2024-01-29 14:16:38,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 211 flow [2024-01-29 14:16:38,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 201 flow [2024-01-29 14:16:38,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:38,118 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;@4ca70c29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:38,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-01-29 14:16:38,123 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:38,123 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:38,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:38,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:38,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:38,125 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)] === [2024-01-29 14:16:38,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:38,130 INFO L85 PathProgramCache]: Analyzing trace with hash 11350, now seen corresponding path program 1 times [2024-01-29 14:16:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:38,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433904246] [2024-01-29 14:16:38,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:38,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:38,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:38,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433904246] [2024-01-29 14:16:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433904246] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:38,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:38,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:38,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464473436] [2024-01-29 14:16:38,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:38,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:38,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:38,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:38,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:38,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 102 [2024-01-29 14:16:38,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:38,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:38,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 102 [2024-01-29 14:16:38,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:38,676 INFO L124 PetriNetUnfolderBase]: 347/1185 cut-off events. [2024-01-29 14:16:38,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:38,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 1185 events. 347/1185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7909 event pairs, 123 based on Foata normal form. 78/1110 useless extension candidates. Maximal degree in co-relation 1915. Up to 652 conditions per place. [2024-01-29 14:16:38,688 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 56 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-29 14:16:38,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 109 transitions, 337 flow [2024-01-29 14:16:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2024-01-29 14:16:38,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7516339869281046 [2024-01-29 14:16:38,700 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 201 flow. Second operand 3 states and 230 transitions. [2024-01-29 14:16:38,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 109 transitions, 337 flow [2024-01-29 14:16:38,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:38,708 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 208 flow [2024-01-29 14:16:38,710 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} [2024-01-29 14:16:38,714 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2024-01-29 14:16:38,715 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 208 flow [2024-01-29 14:16:38,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:38,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:38,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:16:38,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:38,716 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)] === [2024-01-29 14:16:38,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash 338605871, now seen corresponding path program 1 times [2024-01-29 14:16:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:38,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461078781] [2024-01-29 14:16:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:38,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:38,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:38,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461078781] [2024-01-29 14:16:38,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461078781] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:38,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:38,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:38,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081626711] [2024-01-29 14:16:38,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:38,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:38,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:38,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:38,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:38,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 102 [2024-01-29 14:16:38,896 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) [2024-01-29 14:16:38,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:38,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 102 [2024-01-29 14:16:38,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:39,014 INFO L124 PetriNetUnfolderBase]: 160/692 cut-off events. [2024-01-29 14:16:39,015 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-29 14:16:39,017 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 26. Compared 4263 event pairs, 126 based on Foata normal form. 117/747 useless extension candidates. Maximal degree in co-relation 1118. Up to 330 conditions per place. [2024-01-29 14:16:39,019 INFO L140 encePairwiseOnDemand]: 91/102 looper letters, 43 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-29 14:16:39,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 100 transitions, 312 flow [2024-01-29 14:16:39,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-29 14:16:39,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7107843137254902 [2024-01-29 14:16:39,025 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 208 flow. Second operand 4 states and 290 transitions. [2024-01-29 14:16:39,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 100 transitions, 312 flow [2024-01-29 14:16:39,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:39,030 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 190 flow [2024-01-29 14:16:39,031 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} [2024-01-29 14:16:39,031 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2024-01-29 14:16:39,031 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 190 flow [2024-01-29 14:16:39,032 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) [2024-01-29 14:16:39,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:39,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:39,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:39,033 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)] === [2024-01-29 14:16:39,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2126412980, now seen corresponding path program 1 times [2024-01-29 14:16:39,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:39,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603533773] [2024-01-29 14:16:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:39,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:39,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:39,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603533773] [2024-01-29 14:16:39,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603533773] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:39,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:39,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:39,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193154093] [2024-01-29 14:16:39,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:39,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:39,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:39,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:39,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:39,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 102 [2024-01-29 14:16:39,211 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) [2024-01-29 14:16:39,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:39,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 102 [2024-01-29 14:16:39,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:39,386 INFO L124 PetriNetUnfolderBase]: 477/1382 cut-off events. [2024-01-29 14:16:39,387 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-01-29 14:16:39,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 1382 events. 477/1382 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8854 event pairs, 343 based on Foata normal form. 103/1397 useless extension candidates. Maximal degree in co-relation 2497. Up to 827 conditions per place. [2024-01-29 14:16:39,392 INFO L140 encePairwiseOnDemand]: 77/102 looper letters, 75 selfloop transitions, 23 changer transitions 0/126 dead transitions. [2024-01-29 14:16:39,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 126 transitions, 471 flow [2024-01-29 14:16:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:39,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 311 transitions. [2024-01-29 14:16:39,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6098039215686275 [2024-01-29 14:16:39,395 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 190 flow. Second operand 5 states and 311 transitions. [2024-01-29 14:16:39,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 126 transitions, 471 flow [2024-01-29 14:16:39,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 126 transitions, 468 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:39,399 INFO L231 Difference]: Finished difference. Result has 94 places, 96 transitions, 337 flow [2024-01-29 14:16:39,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=337, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2024-01-29 14:16:39,400 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-01-29 14:16:39,400 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 337 flow [2024-01-29 14:16:39,400 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) [2024-01-29 14:16:39,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:39,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:39,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:39,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 14:16:39,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:39,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1319694868, now seen corresponding path program 1 times [2024-01-29 14:16:39,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:39,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435899787] [2024-01-29 14:16:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:39,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:39,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:39,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435899787] [2024-01-29 14:16:39,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435899787] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:39,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:39,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098181708] [2024-01-29 14:16:39,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:39,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:39,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:39,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:39,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2024-01-29 14:16:39,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:39,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:39,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2024-01-29 14:16:39,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:39,675 INFO L124 PetriNetUnfolderBase]: 278/995 cut-off events. [2024-01-29 14:16:39,676 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2024-01-29 14:16:39,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2103 conditions, 995 events. 278/995 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6274 event pairs, 43 based on Foata normal form. 0/984 useless extension candidates. Maximal degree in co-relation 2086. Up to 278 conditions per place. [2024-01-29 14:16:39,680 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 74 selfloop transitions, 6 changer transitions 0/125 dead transitions. [2024-01-29 14:16:39,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 125 transitions, 595 flow [2024-01-29 14:16:39,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-01-29 14:16:39,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-01-29 14:16:39,682 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 337 flow. Second operand 4 states and 272 transitions. [2024-01-29 14:16:39,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 125 transitions, 595 flow [2024-01-29 14:16:39,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 125 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:39,688 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 343 flow [2024-01-29 14:16:39,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=343, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-01-29 14:16:39,690 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2024-01-29 14:16:39,690 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 343 flow [2024-01-29 14:16:39,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:39,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:39,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:39,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:39,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 14:16:39,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:39,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1496816607, now seen corresponding path program 1 times [2024-01-29 14:16:39,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:39,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844496362] [2024-01-29 14:16:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:39,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:39,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844496362] [2024-01-29 14:16:39,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844496362] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:39,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:39,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:39,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471841950] [2024-01-29 14:16:39,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:39,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:39,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:39,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 102 [2024-01-29 14:16:39,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 343 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) [2024-01-29 14:16:39,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:39,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 102 [2024-01-29 14:16:39,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:39,986 INFO L124 PetriNetUnfolderBase]: 295/1105 cut-off events. [2024-01-29 14:16:39,986 INFO L125 PetriNetUnfolderBase]: For 594/598 co-relation queries the response was YES. [2024-01-29 14:16:39,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2400 conditions, 1105 events. 295/1105 cut-off events. For 594/598 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7215 event pairs, 62 based on Foata normal form. 30/1112 useless extension candidates. Maximal degree in co-relation 2381. Up to 342 conditions per place. [2024-01-29 14:16:39,991 INFO L140 encePairwiseOnDemand]: 82/102 looper letters, 70 selfloop transitions, 37 changer transitions 0/148 dead transitions. [2024-01-29 14:16:39,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 148 transitions, 788 flow [2024-01-29 14:16:39,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 328 transitions. [2024-01-29 14:16:39,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6431372549019608 [2024-01-29 14:16:39,993 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 343 flow. Second operand 5 states and 328 transitions. [2024-01-29 14:16:39,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 148 transitions, 788 flow [2024-01-29 14:16:39,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 148 transitions, 768 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 14:16:39,998 INFO L231 Difference]: Finished difference. Result has 99 places, 118 transitions, 658 flow [2024-01-29 14:16:39,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=658, PETRI_PLACES=99, PETRI_TRANSITIONS=118} [2024-01-29 14:16:39,999 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2024-01-29 14:16:39,999 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 118 transitions, 658 flow [2024-01-29 14:16:39,999 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) [2024-01-29 14:16:39,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:39,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:40,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:40,000 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)] === [2024-01-29 14:16:40,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1237031303, now seen corresponding path program 1 times [2024-01-29 14:16:40,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:40,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336796966] [2024-01-29 14:16:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:40,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:40,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:40,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336796966] [2024-01-29 14:16:40,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336796966] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:40,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:40,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:40,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43808409] [2024-01-29 14:16:40,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:40,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:16:40,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:16:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:16:40,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 102 [2024-01-29 14:16:40,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 118 transitions, 658 flow. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:40,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 102 [2024-01-29 14:16:40,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:40,292 INFO L124 PetriNetUnfolderBase]: 315/1070 cut-off events. [2024-01-29 14:16:40,292 INFO L125 PetriNetUnfolderBase]: For 1304/1306 co-relation queries the response was YES. [2024-01-29 14:16:40,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2731 conditions, 1070 events. 315/1070 cut-off events. For 1304/1306 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6662 event pairs, 49 based on Foata normal form. 73/1130 useless extension candidates. Maximal degree in co-relation 2708. Up to 422 conditions per place. [2024-01-29 14:16:40,297 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 78 selfloop transitions, 33 changer transitions 0/148 dead transitions. [2024-01-29 14:16:40,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 148 transitions, 1019 flow [2024-01-29 14:16:40,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 14:16:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 14:16:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 341 transitions. [2024-01-29 14:16:40,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5571895424836601 [2024-01-29 14:16:40,299 INFO L175 Difference]: Start difference. First operand has 99 places, 118 transitions, 658 flow. Second operand 6 states and 341 transitions. [2024-01-29 14:16:40,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 148 transitions, 1019 flow [2024-01-29 14:16:40,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 148 transitions, 962 flow, removed 10 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:40,305 INFO L231 Difference]: Finished difference. Result has 102 places, 124 transitions, 821 flow [2024-01-29 14:16:40,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=102, PETRI_TRANSITIONS=124} [2024-01-29 14:16:40,307 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 2 predicate places. [2024-01-29 14:16:40,307 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 124 transitions, 821 flow [2024-01-29 14:16:40,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 5 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:40,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:40,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:16:40,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 14:16:40,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:40,308 INFO L85 PathProgramCache]: Analyzing trace with hash 889004927, now seen corresponding path program 1 times [2024-01-29 14:16:40,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:40,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296752725] [2024-01-29 14:16:40,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:40,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:40,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:40,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296752725] [2024-01-29 14:16:40,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296752725] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:40,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:40,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:40,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659369390] [2024-01-29 14:16:40,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:40,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:40,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 102 [2024-01-29 14:16:40,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 124 transitions, 821 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:40,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 102 [2024-01-29 14:16:40,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:40,501 INFO L124 PetriNetUnfolderBase]: 331/992 cut-off events. [2024-01-29 14:16:40,502 INFO L125 PetriNetUnfolderBase]: For 1873/1888 co-relation queries the response was YES. [2024-01-29 14:16:40,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2684 conditions, 992 events. 331/992 cut-off events. For 1873/1888 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5766 event pairs, 150 based on Foata normal form. 31/1007 useless extension candidates. Maximal degree in co-relation 2657. Up to 442 conditions per place. [2024-01-29 14:16:40,507 INFO L140 encePairwiseOnDemand]: 91/102 looper letters, 55 selfloop transitions, 6 changer transitions 22/114 dead transitions. [2024-01-29 14:16:40,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 114 transitions, 788 flow [2024-01-29 14:16:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:40,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 234 transitions. [2024-01-29 14:16:40,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5735294117647058 [2024-01-29 14:16:40,508 INFO L175 Difference]: Start difference. First operand has 102 places, 124 transitions, 821 flow. Second operand 4 states and 234 transitions. [2024-01-29 14:16:40,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 114 transitions, 788 flow [2024-01-29 14:16:40,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 114 transitions, 699 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-01-29 14:16:40,514 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 379 flow [2024-01-29 14:16:40,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-01-29 14:16:40,515 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -9 predicate places. [2024-01-29 14:16:40,516 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 379 flow [2024-01-29 14:16:40,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:40,517 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:40,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:16:40,517 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)] === [2024-01-29 14:16:40,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1777555233, now seen corresponding path program 1 times [2024-01-29 14:16:40,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476277562] [2024-01-29 14:16:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:40,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:40,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:40,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476277562] [2024-01-29 14:16:40,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476277562] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:40,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:40,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:40,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407993610] [2024-01-29 14:16:40,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:40,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:40,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:40,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:40,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:40,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 14:16:40,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:40,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 14:16:40,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:40,647 INFO L124 PetriNetUnfolderBase]: 60/309 cut-off events. [2024-01-29 14:16:40,647 INFO L125 PetriNetUnfolderBase]: For 383/383 co-relation queries the response was YES. [2024-01-29 14:16:40,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 309 events. 60/309 cut-off events. For 383/383 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1283 event pairs, 17 based on Foata normal form. 24/323 useless extension candidates. Maximal degree in co-relation 717. Up to 89 conditions per place. [2024-01-29 14:16:40,649 INFO L140 encePairwiseOnDemand]: 94/102 looper letters, 31 selfloop transitions, 8 changer transitions 2/78 dead transitions. [2024-01-29 14:16:40,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 406 flow [2024-01-29 14:16:40,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-01-29 14:16:40,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2024-01-29 14:16:40,650 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 379 flow. Second operand 3 states and 246 transitions. [2024-01-29 14:16:40,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 406 flow [2024-01-29 14:16:40,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 328 flow, removed 9 selfloop flow, removed 9 redundant places. [2024-01-29 14:16:40,653 INFO L231 Difference]: Finished difference. Result has 75 places, 66 transitions, 232 flow [2024-01-29 14:16:40,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=75, PETRI_TRANSITIONS=66} [2024-01-29 14:16:40,655 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -25 predicate places. [2024-01-29 14:16:40,655 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 66 transitions, 232 flow [2024-01-29 14:16:40,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:40,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:40,656 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] [2024-01-29 14:16:40,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:16:40,656 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 14:16:40,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:40,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1218413721, now seen corresponding path program 1 times [2024-01-29 14:16:40,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791569077] [2024-01-29 14:16:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:40,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:40,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:40,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791569077] [2024-01-29 14:16:40,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791569077] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:40,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:40,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:16:40,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497922517] [2024-01-29 14:16:40,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:40,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 14:16:40,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 14:16:40,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-29 14:16:40,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 14:16:40,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 66 transitions, 232 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) [2024-01-29 14:16:40,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:40,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 14:16:40,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:40,904 INFO L124 PetriNetUnfolderBase]: 46/275 cut-off events. [2024-01-29 14:16:40,904 INFO L125 PetriNetUnfolderBase]: For 175/179 co-relation queries the response was YES. [2024-01-29 14:16:40,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 275 events. 46/275 cut-off events. For 175/179 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 991 event pairs, 9 based on Foata normal form. 9/280 useless extension candidates. Maximal degree in co-relation 563. Up to 76 conditions per place. [2024-01-29 14:16:40,906 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 37 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-01-29 14:16:40,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 77 transitions, 373 flow [2024-01-29 14:16:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 310 transitions. [2024-01-29 14:16:40,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7598039215686274 [2024-01-29 14:16:40,907 INFO L175 Difference]: Start difference. First operand has 75 places, 66 transitions, 232 flow. Second operand 4 states and 310 transitions. [2024-01-29 14:16:40,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 77 transitions, 373 flow [2024-01-29 14:16:40,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 335 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-29 14:16:40,909 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 206 flow [2024-01-29 14:16:40,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-01-29 14:16:40,910 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -27 predicate places. [2024-01-29 14:16:40,910 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 206 flow [2024-01-29 14:16:40,910 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) [2024-01-29 14:16:40,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:40,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:40,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:16:40,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 14:16:40,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:40,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1415931554, now seen corresponding path program 1 times [2024-01-29 14:16:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:40,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056117674] [2024-01-29 14:16:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:41,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:41,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:41,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056117674] [2024-01-29 14:16:41,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056117674] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:41,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:41,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-29 14:16:41,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500588416] [2024-01-29 14:16:41,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:41,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 14:16:41,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:41,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 14:16:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-29 14:16:41,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 102 [2024-01-29 14:16:41,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:41,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:41,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 102 [2024-01-29 14:16:41,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:41,135 INFO L124 PetriNetUnfolderBase]: 99/341 cut-off events. [2024-01-29 14:16:41,135 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-01-29 14:16:41,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 341 events. 99/341 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1369 event pairs, 47 based on Foata normal form. 2/338 useless extension candidates. Maximal degree in co-relation 783. Up to 132 conditions per place. [2024-01-29 14:16:41,136 INFO L140 encePairwiseOnDemand]: 92/102 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2024-01-29 14:16:41,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 81 transitions, 386 flow [2024-01-29 14:16:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-29 14:16:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-29 14:16:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 306 transitions. [2024-01-29 14:16:41,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-01-29 14:16:41,138 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 206 flow. Second operand 7 states and 306 transitions. [2024-01-29 14:16:41,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 81 transitions, 386 flow [2024-01-29 14:16:41,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:41,139 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2024-01-29 14:16:41,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2024-01-29 14:16:41,140 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -25 predicate places. [2024-01-29 14:16:41,140 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2024-01-29 14:16:41,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:41,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 48 remaining) [2024-01-29 14:16:41,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 48 remaining) [2024-01-29 14:16:41,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 48 remaining) [2024-01-29 14:16:41,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 48 remaining) [2024-01-29 14:16:41,143 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 48 remaining) [2024-01-29 14:16:41,144 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 48 remaining) [2024-01-29 14:16:41,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (27 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (25 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 48 remaining) [2024-01-29 14:16:41,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (21 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 48 remaining) [2024-01-29 14:16:41,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 48 remaining) [2024-01-29 14:16:41,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 48 remaining) [2024-01-29 14:16:41,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 48 remaining) [2024-01-29 14:16:41,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:16:41,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:41,154 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:41,154 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:41,157 INFO L503 ceAbstractionStarter]: Automizer considered 26 witness invariants [2024-01-29 14:16:41,158 INFO L504 ceAbstractionStarter]: WitnessConsidered=26 [2024-01-29 14:16:41,158 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:41 BasicIcfg [2024-01-29 14:16:41,159 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:41,159 INFO L158 Benchmark]: Toolchain (without parser) took 4482.85ms. Allocated memory was 130.0MB in the beginning and 255.9MB in the end (delta: 125.8MB). Free memory was 55.4MB in the beginning and 91.6MB in the end (delta: -36.2MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,159 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:41,159 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:41,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.38ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 55.0MB in the beginning and 160.2MB in the end (delta: -105.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.79ms. Allocated memory is still 205.5MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,160 INFO L158 Benchmark]: Boogie Preprocessor took 65.97ms. Allocated memory is still 205.5MB. Free memory was 158.1MB in the beginning and 155.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,160 INFO L158 Benchmark]: RCFGBuilder took 609.94ms. Allocated memory is still 205.5MB. Free memory was 155.7MB in the beginning and 117.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,161 INFO L158 Benchmark]: TraceAbstraction took 3242.04ms. Allocated memory was 205.5MB in the beginning and 255.9MB in the end (delta: 50.3MB). Free memory was 116.1MB in the beginning and 91.6MB in the end (delta: 24.5MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2024-01-29 14:16:41,162 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 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.38ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 55.0MB in the beginning and 160.2MB in the end (delta: -105.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.79ms. Allocated memory is still 205.5MB. Free memory was 160.2MB in the beginning and 158.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.97ms. Allocated memory is still 205.5MB. Free memory was 158.1MB in the beginning and 155.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 609.94ms. Allocated memory is still 205.5MB. Free memory was 155.7MB in the beginning and 117.2MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3242.04ms. Allocated memory was 205.5MB in the beginning and 255.9MB in the end (delta: 50.3MB). Free memory was 116.1MB in the beginning and 91.6MB in the end (delta: 24.5MB). Peak memory consumption was 74.8MB. 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: 3.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 909 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 623 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 216 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1247 IncrementalHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 216 mSolverCounterUnsat, 104 mSDtfsCounter, 1247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred in iteration=6, InterpolantAutomatonStates: 45, 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, 0.8s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 14:16:41,185 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