./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 8857f20b 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-8857f20-m [2024-01-29 22:55:14,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:14,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:14,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:14,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:15,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:15,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:15,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:15,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:15,015 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:15,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:15,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:15,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:15,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:15,029 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:15,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:15,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:15,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:15,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:15,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:15,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:15,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:15,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:15,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:15,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:15,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:15,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:15,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:15,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:15,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:15,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:15,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:15,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:15,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:15,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:15,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:15,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:15,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:15,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:15,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:15,037 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:15,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:15,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:15,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:15,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:15,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:15,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:15,336 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:15,336 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:15,337 INFO L431 ainManager$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 22:55:15,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:15,453 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:15,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-29 22:55:16,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:16,902 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:16,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-29 22:55:16,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/581911c2c/943835a757a4477d9f25294c7a96c633/FLAG63056d5ff [2024-01-29 22:55:16,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/581911c2c/943835a757a4477d9f25294c7a96c633 [2024-01-29 22:55:16,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:16,934 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:16,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:16,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:16,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:16,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:15" (1/2) ... [2024-01-29 22:55:16,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5b7cd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:16, skipping insertion in model container [2024-01-29 22:55:16,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:15" (1/2) ... [2024-01-29 22:55:16,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70dbb534 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:16, skipping insertion in model container [2024-01-29 22:55:16,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:16" (2/2) ... [2024-01-29 22:55:16,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5b7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:16, skipping insertion in model container [2024-01-29 22:55:16,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:16" (2/2) ... [2024-01-29 22:55:16,945 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:16,984 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:16,986 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] 0 <= g2 [2024-01-29 22:55:16,986 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] 0 <= g2 [2024-01-29 22:55:16,986 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] 0 <= g2 [2024-01-29 22:55:16,986 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,987 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g2 [2024-01-29 22:55:16,987 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= g2 [2024-01-29 22:55:16,987 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (0 <= g2) && (0 <= g2) [2024-01-29 22:55:16,987 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (0 <= g2) && (0 <= g2) [2024-01-29 22:55:16,988 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] 0 <= g2 [2024-01-29 22:55:16,988 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 22:55:16,988 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] 0 <= g2 [2024-01-29 22:55:16,988 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-29 22:55:16,988 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-29 22:55:16,989 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 1 <= g2 [2024-01-29 22:55:16,989 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,989 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] 0 <= g2 [2024-01-29 22:55:16,989 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,989 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= g2 [2024-01-29 22:55:16,990 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (0 <= g2) && (g2 <= 2147483646) [2024-01-29 22:55:16,990 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,990 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] 1 <= g2 [2024-01-29 22:55:16,991 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 1 <= g2 [2024-01-29 22:55:16,991 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (1 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,991 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] 0 <= g2 [2024-01-29 22:55:16,991 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (0 <= g2) && (g2 <= 2147483646) [2024-01-29 22:55:16,992 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= g2) && (g2 <= 2147483646)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:16,992 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= g2 [2024-01-29 22:55:16,992 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] 0 <= g2 [2024-01-29 22:55:16,992 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (0 <= g2) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:17,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:17,228 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 22:55:17,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:17,419 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:17,432 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 22:55:17,433 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 22:55:17,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:17,570 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:17,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17 WrapperNode [2024-01-29 22:55:17,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:17,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:17,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:17,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:17,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,636 INFO L138 Inliner]: procedures = 163, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 96 [2024-01-29 22:55:17,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:17,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:17,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:17,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:17,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,678 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-29 22:55:17,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,679 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:17,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:17,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:17,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:17,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (1/1) ... [2024-01-29 22:55:17,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:17,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:17,733 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 22:55:17,740 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 22:55:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:55:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:55:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:55:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:55:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:55:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-29 22:55:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-29 22:55:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:17,782 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 22:55:17,958 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:17,960 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:18,245 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:18,245 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:18,336 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:18,336 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:18,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:18 BoogieIcfgContainer [2024-01-29 22:55:18,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:18,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:18,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:18,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:18,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:15" (1/4) ... [2024-01-29 22:55:18,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4046c1bc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:18, skipping insertion in model container [2024-01-29 22:55:18,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:16" (2/4) ... [2024-01-29 22:55:18,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4046c1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:18, skipping insertion in model container [2024-01-29 22:55:18,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:17" (3/4) ... [2024-01-29 22:55:18,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4046c1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:18, skipping insertion in model container [2024-01-29 22:55:18,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:18" (4/4) ... [2024-01-29 22:55:18,345 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-01-29 22:55:18,360 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:18,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2024-01-29 22:55:18,360 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:18,406 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 22:55:18,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 211 flow [2024-01-29 22:55:18,481 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2024-01-29 22:55:18,481 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:55:18,485 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 22:55:18,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 211 flow [2024-01-29 22:55:18,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 99 transitions, 201 flow [2024-01-29 22:55:18,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:18,513 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;@671baae5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:18,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-01-29 22:55:18,516 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:18,516 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:18,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:18,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:18,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:18,519 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 22:55:18,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash 11350, now seen corresponding path program 1 times [2024-01-29 22:55:18,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:18,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736877810] [2024-01-29 22:55:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:18,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:18,760 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 22:55:18,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:18,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736877810] [2024-01-29 22:55:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736877810] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334015769] [2024-01-29 22:55:18,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:18,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:18,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 102 [2024-01-29 22:55:18,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:18,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:18,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 102 [2024-01-29 22:55:18,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:19,229 INFO L124 PetriNetUnfolderBase]: 393/1248 cut-off events. [2024-01-29 22:55:19,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:19,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2083 conditions, 1248 events. 393/1248 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8271 event pairs, 137 based on Foata normal form. 100/1224 useless extension candidates. Maximal degree in co-relation 2072. Up to 746 conditions per place. [2024-01-29 22:55:19,241 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-29 22:55:19,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 109 transitions, 341 flow [2024-01-29 22:55:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-29 22:55:19,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.738562091503268 [2024-01-29 22:55:19,255 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 201 flow. Second operand 3 states and 226 transitions. [2024-01-29 22:55:19,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 109 transitions, 341 flow [2024-01-29 22:55:19,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:19,262 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 208 flow [2024-01-29 22:55:19,264 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 22:55:19,267 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2024-01-29 22:55:19,267 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 208 flow [2024-01-29 22:55:19,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:19,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:19,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:55:19,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:19,268 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 22:55:19,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:19,269 INFO L85 PathProgramCache]: Analyzing trace with hash 338605871, now seen corresponding path program 1 times [2024-01-29 22:55:19,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:19,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237965075] [2024-01-29 22:55:19,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:19,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:19,451 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 22:55:19,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237965075] [2024-01-29 22:55:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237965075] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:19,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:19,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699632387] [2024-01-29 22:55:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:19,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:19,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:19,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:19,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 102 [2024-01-29 22:55:19,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 22:55:19,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:19,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 102 [2024-01-29 22:55:19,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:19,657 INFO L124 PetriNetUnfolderBase]: 160/713 cut-off events. [2024-01-29 22:55:19,657 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-01-29 22:55:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 713 events. 160/713 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4436 event pairs, 126 based on Foata normal form. 17/653 useless extension candidates. Maximal degree in co-relation 1139. Up to 330 conditions per place. [2024-01-29 22:55:19,665 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 43 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-29 22:55:19,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 326 flow [2024-01-29 22:55:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2024-01-29 22:55:19,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7622549019607843 [2024-01-29 22:55:19,672 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 208 flow. Second operand 4 states and 311 transitions. [2024-01-29 22:55:19,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 326 flow [2024-01-29 22:55:19,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 107 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:19,677 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 204 flow [2024-01-29 22:55:19,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-01-29 22:55:19,678 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -2 predicate places. [2024-01-29 22:55:19,678 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 204 flow [2024-01-29 22:55:19,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 22:55:19,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:19,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:19,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:19,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:19,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1470242361, now seen corresponding path program 1 times [2024-01-29 22:55:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:19,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821599501] [2024-01-29 22:55:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:19,770 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 22:55:19,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821599501] [2024-01-29 22:55:19,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821599501] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:19,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:19,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:19,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969360254] [2024-01-29 22:55:19,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:19,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:19,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:19,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:19,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:19,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 102 [2024-01-29 22:55:19,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 22:55:19,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:19,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 102 [2024-01-29 22:55:19,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:20,124 INFO L124 PetriNetUnfolderBase]: 533/1481 cut-off events. [2024-01-29 22:55:20,124 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-01-29 22:55:20,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2779 conditions, 1481 events. 533/1481 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9624 event pairs, 149 based on Foata normal form. 0/1414 useless extension candidates. Maximal degree in co-relation 2766. Up to 934 conditions per place. [2024-01-29 22:55:20,133 INFO L140 encePairwiseOnDemand]: 97/102 looper letters, 80 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2024-01-29 22:55:20,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 430 flow [2024-01-29 22:55:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-01-29 22:55:20,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906862745098039 [2024-01-29 22:55:20,135 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 204 flow. Second operand 4 states and 241 transitions. [2024-01-29 22:55:20,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 430 flow [2024-01-29 22:55:20,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 121 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:20,138 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 203 flow [2024-01-29 22:55:20,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2024-01-29 22:55:20,139 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -3 predicate places. [2024-01-29 22:55:20,139 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 203 flow [2024-01-29 22:55:20,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 22:55:20,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:20,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:20,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:20,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:20,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:20,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2126412980, now seen corresponding path program 1 times [2024-01-29 22:55:20,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:20,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123350444] [2024-01-29 22:55:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:20,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:20,211 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 22:55:20,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123350444] [2024-01-29 22:55:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123350444] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:20,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472106861] [2024-01-29 22:55:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:20,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:20,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:20,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:20,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 102 [2024-01-29 22:55:20,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 22:55:20,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:20,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 102 [2024-01-29 22:55:20,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:20,524 INFO L124 PetriNetUnfolderBase]: 575/1506 cut-off events. [2024-01-29 22:55:20,525 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-01-29 22:55:20,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2768 conditions, 1506 events. 575/1506 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8662 event pairs, 483 based on Foata normal form. 124/1573 useless extension candidates. Maximal degree in co-relation 2755. Up to 1013 conditions per place. [2024-01-29 22:55:20,531 INFO L140 encePairwiseOnDemand]: 85/102 looper letters, 67 selfloop transitions, 7 changer transitions 0/101 dead transitions. [2024-01-29 22:55:20,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 101 transitions, 364 flow [2024-01-29 22:55:20,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-29 22:55:20,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2024-01-29 22:55:20,534 INFO L175 Difference]: Start difference. First operand has 97 places, 89 transitions, 203 flow. Second operand 4 states and 222 transitions. [2024-01-29 22:55:20,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 101 transitions, 364 flow [2024-01-29 22:55:20,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 101 transitions, 353 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:20,537 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 173 flow [2024-01-29 22:55:20,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-01-29 22:55:20,538 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -15 predicate places. [2024-01-29 22:55:20,539 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 173 flow [2024-01-29 22:55:20,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 22:55:20,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:20,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:20,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:20,542 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 22:55:20,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1496816607, now seen corresponding path program 1 times [2024-01-29 22:55:20,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:20,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119336626] [2024-01-29 22:55:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:20,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:20,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119336626] [2024-01-29 22:55:20,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119336626] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:20,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:20,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:20,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249323468] [2024-01-29 22:55:20,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:20,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:20,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 102 [2024-01-29 22:55:20,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 173 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:20,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:20,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 102 [2024-01-29 22:55:20,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:20,941 INFO L124 PetriNetUnfolderBase]: 258/1079 cut-off events. [2024-01-29 22:55:20,941 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-01-29 22:55:20,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1727 conditions, 1079 events. 258/1079 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7119 event pairs, 87 based on Foata normal form. 13/913 useless extension candidates. Maximal degree in co-relation 1715. Up to 244 conditions per place. [2024-01-29 22:55:20,947 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 49 selfloop transitions, 22 changer transitions 0/113 dead transitions. [2024-01-29 22:55:20,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 113 transitions, 401 flow [2024-01-29 22:55:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2024-01-29 22:55:20,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6235294117647059 [2024-01-29 22:55:20,954 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 173 flow. Second operand 5 states and 318 transitions. [2024-01-29 22:55:20,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 113 transitions, 401 flow [2024-01-29 22:55:20,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 113 transitions, 371 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:20,958 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 281 flow [2024-01-29 22:55:20,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=90, PETRI_TRANSITIONS=90} [2024-01-29 22:55:20,961 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -10 predicate places. [2024-01-29 22:55:20,961 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 281 flow [2024-01-29 22:55:20,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:20,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:20,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:20,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:20,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:20,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:20,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1319694868, now seen corresponding path program 1 times [2024-01-29 22:55:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:20,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317118998] [2024-01-29 22:55:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:20,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:21,024 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 22:55:21,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:21,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317118998] [2024-01-29 22:55:21,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317118998] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:21,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:21,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:21,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263549836] [2024-01-29 22:55:21,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:21,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:21,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:21,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:21,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:21,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 102 [2024-01-29 22:55:21,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 22:55:21,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:21,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 102 [2024-01-29 22:55:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:21,309 INFO L124 PetriNetUnfolderBase]: 270/920 cut-off events. [2024-01-29 22:55:21,309 INFO L125 PetriNetUnfolderBase]: For 349/364 co-relation queries the response was YES. [2024-01-29 22:55:21,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 920 events. 270/920 cut-off events. For 349/364 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5644 event pairs, 39 based on Foata normal form. 60/937 useless extension candidates. Maximal degree in co-relation 1756. Up to 280 conditions per place. [2024-01-29 22:55:21,315 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 64 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-01-29 22:55:21,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 447 flow [2024-01-29 22:55:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2024-01-29 22:55:21,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2024-01-29 22:55:21,317 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 281 flow. Second operand 4 states and 258 transitions. [2024-01-29 22:55:21,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 447 flow [2024-01-29 22:55:21,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 445 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-01-29 22:55:21,324 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 245 flow [2024-01-29 22:55:21,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2024-01-29 22:55:21,327 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -10 predicate places. [2024-01-29 22:55:21,327 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 245 flow [2024-01-29 22:55:21,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 22:55:21,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:21,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:21,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:21,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:21,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2039132503, now seen corresponding path program 1 times [2024-01-29 22:55:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:21,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512439234] [2024-01-29 22:55:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:21,406 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 22:55:21,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512439234] [2024-01-29 22:55:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512439234] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:21,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:21,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:21,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087423524] [2024-01-29 22:55:21,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:21,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:21,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:21,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:21,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:21,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 102 [2024-01-29 22:55:21,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:21,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:21,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 102 [2024-01-29 22:55:21,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:21,695 INFO L124 PetriNetUnfolderBase]: 335/1030 cut-off events. [2024-01-29 22:55:21,696 INFO L125 PetriNetUnfolderBase]: For 434/449 co-relation queries the response was YES. [2024-01-29 22:55:21,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2105 conditions, 1030 events. 335/1030 cut-off events. For 434/449 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6134 event pairs, 23 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 2087. Up to 377 conditions per place. [2024-01-29 22:55:21,702 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 73 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-01-29 22:55:21,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 112 transitions, 495 flow [2024-01-29 22:55:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-29 22:55:21,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2024-01-29 22:55:21,704 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 245 flow. Second operand 4 states and 222 transitions. [2024-01-29 22:55:21,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 112 transitions, 495 flow [2024-01-29 22:55:21,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 112 transitions, 487 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:21,726 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 239 flow [2024-01-29 22:55:21,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2024-01-29 22:55:21,727 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2024-01-29 22:55:21,727 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 239 flow [2024-01-29 22:55:21,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:21,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:21,728 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 22:55:21,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:21,728 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:21,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1458448039, now seen corresponding path program 1 times [2024-01-29 22:55:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:21,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607109719] [2024-01-29 22:55:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:21,827 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 22:55:21,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:21,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607109719] [2024-01-29 22:55:21,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607109719] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:21,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:21,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:21,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704437821] [2024-01-29 22:55:21,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:21,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:21,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:21,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:21,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 102 [2024-01-29 22:55:21,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:21,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:21,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 102 [2024-01-29 22:55:21,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:22,067 INFO L124 PetriNetUnfolderBase]: 299/901 cut-off events. [2024-01-29 22:55:22,067 INFO L125 PetriNetUnfolderBase]: For 335/335 co-relation queries the response was YES. [2024-01-29 22:55:22,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1865 conditions, 901 events. 299/901 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5106 event pairs, 88 based on Foata normal form. 69/919 useless extension candidates. Maximal degree in co-relation 1848. Up to 246 conditions per place. [2024-01-29 22:55:22,072 INFO L140 encePairwiseOnDemand]: 88/102 looper letters, 56 selfloop transitions, 24 changer transitions 2/113 dead transitions. [2024-01-29 22:55:22,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 113 transitions, 509 flow [2024-01-29 22:55:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:55:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:55:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 327 transitions. [2024-01-29 22:55:22,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5343137254901961 [2024-01-29 22:55:22,074 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 239 flow. Second operand 6 states and 327 transitions. [2024-01-29 22:55:22,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 113 transitions, 509 flow [2024-01-29 22:55:22,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 113 transitions, 475 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-29 22:55:22,079 INFO L231 Difference]: Finished difference. Result has 87 places, 86 transitions, 354 flow [2024-01-29 22:55:22,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=87, PETRI_TRANSITIONS=86} [2024-01-29 22:55:22,079 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2024-01-29 22:55:22,080 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 86 transitions, 354 flow [2024-01-29 22:55:22,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:22,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:22,080 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 22:55:22,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:22,081 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 45 more)] === [2024-01-29 22:55:22,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 889004927, now seen corresponding path program 1 times [2024-01-29 22:55:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:22,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558091864] [2024-01-29 22:55:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:22,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:22,224 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 22:55:22,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:22,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558091864] [2024-01-29 22:55:22,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558091864] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:22,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:22,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:22,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814896983] [2024-01-29 22:55:22,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:22,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:55:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:22,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:55:22,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:55:22,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 102 [2024-01-29 22:55:22,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:22,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:22,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 102 [2024-01-29 22:55:22,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:22,549 INFO L124 PetriNetUnfolderBase]: 520/1287 cut-off events. [2024-01-29 22:55:22,550 INFO L125 PetriNetUnfolderBase]: For 1400/1426 co-relation queries the response was YES. [2024-01-29 22:55:22,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3161 conditions, 1287 events. 520/1287 cut-off events. For 1400/1426 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7132 event pairs, 43 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 3141. Up to 687 conditions per place. [2024-01-29 22:55:22,555 INFO L140 encePairwiseOnDemand]: 96/102 looper letters, 63 selfloop transitions, 7 changer transitions 29/118 dead transitions. [2024-01-29 22:55:22,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 118 transitions, 649 flow [2024-01-29 22:55:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-01-29 22:55:22,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-01-29 22:55:22,557 INFO L175 Difference]: Start difference. First operand has 87 places, 86 transitions, 354 flow. Second operand 5 states and 205 transitions. [2024-01-29 22:55:22,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 118 transitions, 649 flow [2024-01-29 22:55:22,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 118 transitions, 646 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:22,563 INFO L231 Difference]: Finished difference. Result has 88 places, 68 transitions, 274 flow [2024-01-29 22:55:22,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=88, PETRI_TRANSITIONS=68} [2024-01-29 22:55:22,564 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -12 predicate places. [2024-01-29 22:55:22,564 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 68 transitions, 274 flow [2024-01-29 22:55:22,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:22,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:22,565 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 22:55:22,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:55:22,565 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 22:55:22,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1512320131, now seen corresponding path program 1 times [2024-01-29 22:55:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:22,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966307021] [2024-01-29 22:55:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:22,695 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 22:55:22,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966307021] [2024-01-29 22:55:22,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966307021] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:22,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:22,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391233813] [2024-01-29 22:55:22,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:22,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:22,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:22,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:22,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:22,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 102 [2024-01-29 22:55:22,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 68 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 22:55:22,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:22,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 102 [2024-01-29 22:55:22,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:22,759 INFO L124 PetriNetUnfolderBase]: 61/381 cut-off events. [2024-01-29 22:55:22,760 INFO L125 PetriNetUnfolderBase]: For 379/384 co-relation queries the response was YES. [2024-01-29 22:55:22,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 381 events. 61/381 cut-off events. For 379/384 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1800 event pairs, 10 based on Foata normal form. 10/386 useless extension candidates. Maximal degree in co-relation 729. Up to 130 conditions per place. [2024-01-29 22:55:22,761 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2024-01-29 22:55:22,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 363 flow [2024-01-29 22:55:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 310 transitions. [2024-01-29 22:55:22,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7598039215686274 [2024-01-29 22:55:22,763 INFO L175 Difference]: Start difference. First operand has 88 places, 68 transitions, 274 flow. Second operand 4 states and 310 transitions. [2024-01-29 22:55:22,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 363 flow [2024-01-29 22:55:22,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 290 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-01-29 22:55:22,765 INFO L231 Difference]: Finished difference. Result has 70 places, 0 transitions, 0 flow [2024-01-29 22:55:22,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=70, PETRI_TRANSITIONS=0} [2024-01-29 22:55:22,765 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -30 predicate places. [2024-01-29 22:55:22,766 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 0 transitions, 0 flow [2024-01-29 22:55:22,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 22:55:22,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 48 remaining) [2024-01-29 22:55:22,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 48 remaining) [2024-01-29 22:55:22,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 48 remaining) [2024-01-29 22:55:22,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (27 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (25 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 48 remaining) [2024-01-29 22:55:22,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (21 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 48 remaining) [2024-01-29 22:55:22,773 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 48 remaining) [2024-01-29 22:55:22,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 48 remaining) [2024-01-29 22:55:22,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 48 remaining) [2024-01-29 22:55:22,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 48 remaining) [2024-01-29 22:55:22,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 48 remaining) [2024-01-29 22:55:22,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 48 remaining) [2024-01-29 22:55:22,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:55:22,776 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:22,781 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:22,781 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:22,785 INFO L503 ceAbstractionStarter]: Automizer considered 26 witness invariants [2024-01-29 22:55:22,785 INFO L504 ceAbstractionStarter]: WitnessConsidered=26 [2024-01-29 22:55:22,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:22 BasicIcfg [2024-01-29 22:55:22,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:22,787 INFO L158 Benchmark]: Toolchain (without parser) took 5852.41ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 84.3MB in the beginning and 86.7MB in the end (delta: -2.4MB). Peak memory consumption was 89.9MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,787 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 142.6MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:22,787 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:22,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.65ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 60.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.88ms. Allocated memory is still 142.6MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,788 INFO L158 Benchmark]: Boogie Preprocessor took 54.90ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 55.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,788 INFO L158 Benchmark]: RCFGBuilder took 632.79ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 90.7MB in the end (delta: -35.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,788 INFO L158 Benchmark]: TraceAbstraction took 4447.19ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 90.5MB in the beginning and 86.7MB in the end (delta: 3.7MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2024-01-29 22:55:22,790 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.12ms. Allocated memory is still 142.6MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.65ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 60.3MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.88ms. Allocated memory is still 142.6MB. Free memory was 60.3MB in the beginning and 58.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.90ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 55.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 632.79ms. Allocated memory is still 142.6MB. Free memory was 55.5MB in the beginning and 90.7MB in the end (delta: -35.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4447.19ms. Allocated memory was 142.6MB in the beginning and 230.7MB in the end (delta: 88.1MB). Free memory was 90.5MB in the beginning and 86.7MB in the end (delta: 3.7MB). Peak memory consumption was 92.9MB. 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: 4.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1433 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 945 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1639 IncrementalHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 105 mSDtfsCounter, 1639 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=8, InterpolantAutomatonStates: 43, 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, 0.9s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 839 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 22:55:22,815 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