./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.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/singleton_with-uninit-problems.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/pthread/singleton_with-uninit-problems.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.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 22:49:40,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:49:40,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:49:40,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:49:40,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:49:40,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:49:40,942 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:49:40,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:49:40,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:49:40,944 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:49:40,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:49:40,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:49:40,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:49:40,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:49:40,947 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:49:40,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:49:40,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:49:40,960 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:49:40,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:49:40,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:49:40,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:49:40,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:49:40,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:49:40,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:49:40,962 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:49:40,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:49:40,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:49:40,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:49:40,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:49:40,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:49:40,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:49:40,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:49:40,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:49:40,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:49:40,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:49:40,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:49:40,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:49:40,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:49:40,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:49:40,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:49:40,965 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:49:40,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:49:40,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:49:40,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:49:41,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:49:41,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:49:41,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:49:41,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:49:41,214 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:49:41,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-01-29 22:49:42,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:49:43,219 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:49:43,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-01-29 22:49:43,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/655a4e554/d705407b171340b0a5d1db8a7300cea1/FLAGe28e6a70c [2024-01-29 22:49:43,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/655a4e554/d705407b171340b0a5d1db8a7300cea1 [2024-01-29 22:49:43,268 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:49:43,269 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:49:43,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.yml/witness.yml [2024-01-29 22:49:43,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:49:43,362 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:49:43,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:49:43,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:49:43,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:49:43,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:49:43" (1/2) ... [2024-01-29 22:49:43,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a02fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:43, skipping insertion in model container [2024-01-29 22:49:43,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:49:43" (1/2) ... [2024-01-29 22:49:43,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5557440f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:49:43, skipping insertion in model container [2024-01-29 22:49:43,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:43" (2/2) ... [2024-01-29 22:49:43,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a02fed and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43, skipping insertion in model container [2024-01-29 22:49:43,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:43" (2/2) ... [2024-01-29 22:49:43,373 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:49:43,419 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:49:43,421 INFO L98 nessWitnessExtractor]: Location invariant before [L1149-L1149] (unsigned long )arg == 0UL [2024-01-29 22:49:43,421 INFO L98 nessWitnessExtractor]: Location invariant before [L1141-L1141] (unsigned long )arg == 0UL [2024-01-29 22:49:43,421 INFO L98 nessWitnessExtractor]: Location invariant before [L1139-L1139] (unsigned long )arg == 0UL [2024-01-29 22:49:43,421 INFO L98 nessWitnessExtractor]: Location invariant before [L1134-L1134] (unsigned long )arg == 0UL [2024-01-29 22:49:43,422 INFO L98 nessWitnessExtractor]: Location invariant before [L1162-L1162] v == 0 [2024-01-29 22:49:43,422 INFO L98 nessWitnessExtractor]: Location invariant before [L1150-L1150] (unsigned long )arg == 0UL [2024-01-29 22:49:43,422 INFO L98 nessWitnessExtractor]: Location invariant before [L1151-L1151] (unsigned long )arg == 0UL [2024-01-29 22:49:43,422 INFO L98 nessWitnessExtractor]: Location invariant before [L1157-L1157] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1135-L1135] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1152-L1152] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1154-L1154] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1132-L1132] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1142-L1142] (unsigned long )arg == 0UL [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] (expression == 1) && (expression == 0) [2024-01-29 22:49:43,423 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (expression == 0 || expression == 1) [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (0 <= expression) [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] expression == 1 [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (expression <= 1) [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1147-L1147] (unsigned long )arg == 0UL [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1128-L1128] (unsigned long )arg == 0UL [2024-01-29 22:49:43,424 INFO L98 nessWitnessExtractor]: Location invariant before [L1133-L1133] (unsigned long )arg == 0UL [2024-01-29 22:49:43,425 INFO L98 nessWitnessExtractor]: Location invariant before [L1127-L1127] (unsigned long )arg == 0UL [2024-01-29 22:49:43,425 INFO L98 nessWitnessExtractor]: Location invariant before [L1155-L1155] (unsigned long )arg == 0UL [2024-01-29 22:49:43,425 INFO L98 nessWitnessExtractor]: Location invariant before [L1153-L1153] (unsigned long )arg == 0UL [2024-01-29 22:49:43,425 INFO L98 nessWitnessExtractor]: Location invariant before [L1140-L1140] (unsigned long )arg == 0UL [2024-01-29 22:49:43,425 INFO L98 nessWitnessExtractor]: Location invariant before [L1156-L1156] (unsigned long )arg == 0UL [2024-01-29 22:49:43,426 INFO L98 nessWitnessExtractor]: Location invariant before [L1148-L1148] (unsigned long )arg == 0UL [2024-01-29 22:49:43,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:49:43,837 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-01-29 22:49:43,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:49:43,874 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:49:43,912 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-01-29 22:49:43,913 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();}}; return; } 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 [2024-01-29 22:49:43,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:49:43,992 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:49:43,993 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43 WrapperNode [2024-01-29 22:49:43,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:49:43,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:49:43,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:49:43,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:49:43,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,040 INFO L138 Inliner]: procedures = 324, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2024-01-29 22:49:44,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:49:44,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:49:44,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:49:44,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:49:44,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,079 INFO L175 MemorySlicer]: Split 18 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 4, 2]. 22 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [1, 0, 1, 1, 1, 1, 2, 1]. [2024-01-29 22:49:44,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:49:44,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:49:44,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:49:44,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:49:44,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (1/1) ... [2024-01-29 22:49:44,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:49:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:49:44,127 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 22:49:44,128 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 22:49:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:49:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:49:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 22:49:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-29 22:49:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-29 22:49:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-01-29 22:49:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-01-29 22:49:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:49:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:49:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:49:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:49:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:49:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-29 22:49:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:49:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 22:49:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-29 22:49:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-29 22:49:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:49:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:49:44,158 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 22:49:44,283 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:49:44,284 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:49:44,477 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:49:44,477 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:49:44,603 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:49:44,603 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:49:44,603 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:49:44 BoogieIcfgContainer [2024-01-29 22:49:44,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:49:44,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:49:44,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:49:44,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:49:44,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:49:43" (1/4) ... [2024-01-29 22:49:44,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66959f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:49:44, skipping insertion in model container [2024-01-29 22:49:44,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:49:43" (2/4) ... [2024-01-29 22:49:44,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66959f49 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:49:44, skipping insertion in model container [2024-01-29 22:49:44,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:49:43" (3/4) ... [2024-01-29 22:49:44,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66959f49 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:49:44, skipping insertion in model container [2024-01-29 22:49:44,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:49:44" (4/4) ... [2024-01-29 22:49:44,610 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-01-29 22:49:44,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:49:44,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-01-29 22:49:44,623 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:49:44,741 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-01-29 22:49:44,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 389 flow [2024-01-29 22:49:44,815 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-01-29 22:49:44,815 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:49:44,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 97 events. 6/97 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2024-01-29 22:49:44,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 146 transitions, 389 flow [2024-01-29 22:49:44,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 94 transitions, 239 flow [2024-01-29 22:49:44,830 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:49:44,835 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;@215b17c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:49:44,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-01-29 22:49:44,836 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:49:44,837 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:49:44,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:49:44,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:44,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:49:44,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:44,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:44,841 INFO L85 PathProgramCache]: Analyzing trace with hash 10604, now seen corresponding path program 1 times [2024-01-29 22:49:44,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:44,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217132624] [2024-01-29 22:49:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:44,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:45,055 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 22:49:45,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:45,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217132624] [2024-01-29 22:49:45,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217132624] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:45,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:45,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:49:45,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046818114] [2024-01-29 22:49:45,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:45,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:49:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:45,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:49:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:49:45,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 148 [2024-01-29 22:49:45,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 94 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 22:49:45,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:45,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 148 [2024-01-29 22:49:45,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:46,357 INFO L124 PetriNetUnfolderBase]: 7191/10961 cut-off events. [2024-01-29 22:49:46,357 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-01-29 22:49:46,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21263 conditions, 10961 events. 7191/10961 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 74041 event pairs, 5813 based on Foata normal form. 0/8343 useless extension candidates. Maximal degree in co-relation 21240. Up to 9585 conditions per place. [2024-01-29 22:49:46,449 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 53 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-29 22:49:46,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 92 transitions, 345 flow [2024-01-29 22:49:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:49:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:49:46,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-01-29 22:49:46,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-29 22:49:46,463 INFO L175 Difference]: Start difference. First operand has 108 places, 94 transitions, 239 flow. Second operand 3 states and 246 transitions. [2024-01-29 22:49:46,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 92 transitions, 345 flow [2024-01-29 22:49:46,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 311 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-29 22:49:46,496 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 199 flow [2024-01-29 22:49:46,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2024-01-29 22:49:46,502 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -15 predicate places. [2024-01-29 22:49:46,502 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 199 flow [2024-01-29 22:49:46,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 22:49:46,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:46,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:49:46,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:49:46,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:46,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash 316368621, now seen corresponding path program 1 times [2024-01-29 22:49:46,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:46,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191401713] [2024-01-29 22:49:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:46,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:46,707 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 22:49:46,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191401713] [2024-01-29 22:49:46,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191401713] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:46,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:46,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:46,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315458028] [2024-01-29 22:49:46,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:46,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:46,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:46,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 148 [2024-01-29 22:49:46,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 22:49:46,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:46,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 148 [2024-01-29 22:49:46,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:47,498 INFO L124 PetriNetUnfolderBase]: 7191/10295 cut-off events. [2024-01-29 22:49:47,498 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-01-29 22:49:47,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20081 conditions, 10295 events. 7191/10295 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 63283 event pairs, 5816 based on Foata normal form. 0/7677 useless extension candidates. Maximal degree in co-relation 11202. Up to 9599 conditions per place. [2024-01-29 22:49:47,552 INFO L140 encePairwiseOnDemand]: 135/148 looper letters, 51 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-29 22:49:47,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 79 transitions, 285 flow [2024-01-29 22:49:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:47,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-01-29 22:49:47,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594594594594595 [2024-01-29 22:49:47,556 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 199 flow. Second operand 4 states and 272 transitions. [2024-01-29 22:49:47,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 79 transitions, 285 flow [2024-01-29 22:49:47,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 79 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:47,559 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 177 flow [2024-01-29 22:49:47,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2024-01-29 22:49:47,560 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -25 predicate places. [2024-01-29 22:49:47,560 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 177 flow [2024-01-29 22:49:47,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 22:49:47,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:47,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:49:47,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:47,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:47,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1779810864, now seen corresponding path program 1 times [2024-01-29 22:49:47,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:47,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635517143] [2024-01-29 22:49:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:47,649 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 22:49:47,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:47,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635517143] [2024-01-29 22:49:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635517143] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:47,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:47,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:47,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082784065] [2024-01-29 22:49:47,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:47,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:47,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:47,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:47,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:47,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 22:49:47,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 22:49:47,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:47,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 22:49:47,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:48,441 INFO L124 PetriNetUnfolderBase]: 7198/10302 cut-off events. [2024-01-29 22:49:48,442 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-01-29 22:49:48,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20097 conditions, 10302 events. 7198/10302 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 63320 event pairs, 5810 based on Foata normal form. 0/7686 useless extension candidates. Maximal degree in co-relation 20078. Up to 9597 conditions per place. [2024-01-29 22:49:48,498 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 55 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-01-29 22:49:48,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 295 flow [2024-01-29 22:49:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2024-01-29 22:49:48,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050675675675675 [2024-01-29 22:49:48,500 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 177 flow. Second operand 4 states and 299 transitions. [2024-01-29 22:49:48,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 295 flow [2024-01-29 22:49:48,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:48,503 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 174 flow [2024-01-29 22:49:48,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-01-29 22:49:48,504 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -26 predicate places. [2024-01-29 22:49:48,504 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 174 flow [2024-01-29 22:49:48,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 22:49:48,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:48,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:48,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:49:48,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:48,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:48,506 INFO L85 PathProgramCache]: Analyzing trace with hash 535149065, now seen corresponding path program 1 times [2024-01-29 22:49:48,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:48,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960569327] [2024-01-29 22:49:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:48,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:48,716 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 22:49:48,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:48,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960569327] [2024-01-29 22:49:48,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960569327] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:48,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:48,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:48,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117021137] [2024-01-29 22:49:48,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:48,725 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 22:49:48,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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 22:49:48,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:48,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 22:49:48,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:49,341 INFO L124 PetriNetUnfolderBase]: 7191/10405 cut-off events. [2024-01-29 22:49:49,342 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-01-29 22:49:49,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20190 conditions, 10405 events. 7191/10405 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 60967 event pairs, 4197 based on Foata normal form. 510/9055 useless extension candidates. Maximal degree in co-relation 11286. Up to 7885 conditions per place. [2024-01-29 22:49:49,398 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 22:49:49,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 95 transitions, 363 flow [2024-01-29 22:49:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 22:49:49,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 22:49:49,409 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 174 flow. Second operand 4 states and 317 transitions. [2024-01-29 22:49:49,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 95 transitions, 363 flow [2024-01-29 22:49:49,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 95 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:49,412 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 169 flow [2024-01-29 22:49:49,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-01-29 22:49:49,413 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -28 predicate places. [2024-01-29 22:49:49,413 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 169 flow [2024-01-29 22:49:49,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 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 22:49:49,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:49,414 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] [2024-01-29 22:49:49,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:49:49,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:49,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -806643272, now seen corresponding path program 1 times [2024-01-29 22:49:49,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:49,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321876544] [2024-01-29 22:49:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:49,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:49,606 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 22:49:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321876544] [2024-01-29 22:49:49,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321876544] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:49,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:49,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:49,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359927657] [2024-01-29 22:49:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:49,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:49,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:49,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:49,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 22:49:49,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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 22:49:49,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:49,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 22:49:49,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:50,273 INFO L124 PetriNetUnfolderBase]: 5528/8052 cut-off events. [2024-01-29 22:49:50,273 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-29 22:49:50,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15624 conditions, 8052 events. 5528/8052 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 49289 event pairs, 530 based on Foata normal form. 442/7416 useless extension candidates. Maximal degree in co-relation 8748. Up to 5903 conditions per place. [2024-01-29 22:49:50,306 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-29 22:49:50,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 93 transitions, 361 flow [2024-01-29 22:49:50,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:50,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:50,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 22:49:50,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 22:49:50,308 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 169 flow. Second operand 4 states and 317 transitions. [2024-01-29 22:49:50,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 93 transitions, 361 flow [2024-01-29 22:49:50,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:50,310 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 164 flow [2024-01-29 22:49:50,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=70} [2024-01-29 22:49:50,311 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-29 22:49:50,311 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 164 flow [2024-01-29 22:49:50,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 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 22:49:50,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:50,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:50,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:49:50,312 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:50,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:50,312 INFO L85 PathProgramCache]: Analyzing trace with hash -420604501, now seen corresponding path program 1 times [2024-01-29 22:49:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751557703] [2024-01-29 22:49:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:50,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:50,388 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 22:49:50,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751557703] [2024-01-29 22:49:50,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751557703] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:50,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:50,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:50,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174119869] [2024-01-29 22:49:50,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:50,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:50,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:50,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:50,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 22:49:50,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 70 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 22:49:50,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:50,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 22:49:50,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:50,769 INFO L124 PetriNetUnfolderBase]: 4095/6005 cut-off events. [2024-01-29 22:49:50,770 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-01-29 22:49:50,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11680 conditions, 6005 events. 4095/6005 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 32847 event pairs, 823 based on Foata normal form. 334/5845 useless extension candidates. Maximal degree in co-relation 6555. Up to 4245 conditions per place. [2024-01-29 22:49:50,805 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-29 22:49:50,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 359 flow [2024-01-29 22:49:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:50,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 22:49:50,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 22:49:50,807 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 164 flow. Second operand 4 states and 317 transitions. [2024-01-29 22:49:50,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 359 flow [2024-01-29 22:49:50,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 91 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:50,810 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 159 flow [2024-01-29 22:49:50,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2024-01-29 22:49:50,813 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -32 predicate places. [2024-01-29 22:49:50,813 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 159 flow [2024-01-29 22:49:50,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 22:49:50,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:50,814 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] [2024-01-29 22:49:50,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:49:50,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:50,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1835301158, now seen corresponding path program 1 times [2024-01-29 22:49:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236742877] [2024-01-29 22:49:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:50,939 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 22:49:50,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:50,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236742877] [2024-01-29 22:49:50,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236742877] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:50,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:50,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:49:50,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968600972] [2024-01-29 22:49:50,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:50,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:50,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:50,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:50,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 22:49:50,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 22:49:50,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:50,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 22:49:50,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:51,294 INFO L124 PetriNetUnfolderBase]: 3032/4442 cut-off events. [2024-01-29 22:49:51,295 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-01-29 22:49:51,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8726 conditions, 4442 events. 3032/4442 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 23554 event pairs, 494 based on Foata normal form. 214/4514 useless extension candidates. Maximal degree in co-relation 4911. Up to 2671 conditions per place. [2024-01-29 22:49:51,315 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-01-29 22:49:51,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 357 flow [2024-01-29 22:49:51,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 22:49:51,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 22:49:51,317 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 159 flow. Second operand 4 states and 317 transitions. [2024-01-29 22:49:51,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 357 flow [2024-01-29 22:49:51,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:51,320 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 154 flow [2024-01-29 22:49:51,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2024-01-29 22:49:51,320 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -34 predicate places. [2024-01-29 22:49:51,321 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 154 flow [2024-01-29 22:49:51,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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 22:49:51,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:51,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:51,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:49:51,322 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:51,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1414109003, now seen corresponding path program 1 times [2024-01-29 22:49:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041140786] [2024-01-29 22:49:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:51,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:49:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:51,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041140786] [2024-01-29 22:49:51,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041140786] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:51,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:51,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:49:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717394296] [2024-01-29 22:49:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:51,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:51,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:51,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:51,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:51,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2024-01-29 22:49:51,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 22:49:51,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:51,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2024-01-29 22:49:51,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:51,971 INFO L124 PetriNetUnfolderBase]: 3743/5425 cut-off events. [2024-01-29 22:49:51,972 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-01-29 22:49:51,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10905 conditions, 5425 events. 3743/5425 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 27127 event pairs, 1249 based on Foata normal form. 1/5170 useless extension candidates. Maximal degree in co-relation 6169. Up to 3255 conditions per place. [2024-01-29 22:49:51,988 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 66 selfloop transitions, 4 changer transitions 13/98 dead transitions. [2024-01-29 22:49:51,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 402 flow [2024-01-29 22:49:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2024-01-29 22:49:51,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-29 22:49:51,990 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 154 flow. Second operand 4 states and 328 transitions. [2024-01-29 22:49:51,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 402 flow [2024-01-29 22:49:51,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 98 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:51,993 INFO L231 Difference]: Finished difference. Result has 78 places, 67 transitions, 183 flow [2024-01-29 22:49:51,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=78, PETRI_TRANSITIONS=67} [2024-01-29 22:49:51,994 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-29 22:49:51,994 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 67 transitions, 183 flow [2024-01-29 22:49:51,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 22:49:51,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:49:51,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:51,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:49:51,995 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 22:49:51,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:49:51,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1554086819, now seen corresponding path program 2 times [2024-01-29 22:49:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:49:51,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920630561] [2024-01-29 22:49:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:49:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:49:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:49:52,270 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 22:49:52,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:49:52,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920630561] [2024-01-29 22:49:52,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920630561] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:49:52,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:49:52,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:49:52,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79025874] [2024-01-29 22:49:52,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:49:52,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:49:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:49:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:49:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:49:52,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2024-01-29 22:49:52,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 67 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 22:49:52,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:49:52,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2024-01-29 22:49:52,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:49:52,655 INFO L124 PetriNetUnfolderBase]: 3197/4622 cut-off events. [2024-01-29 22:49:52,656 INFO L125 PetriNetUnfolderBase]: For 1916/1916 co-relation queries the response was YES. [2024-01-29 22:49:52,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11029 conditions, 4622 events. 3197/4622 cut-off events. For 1916/1916 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 22694 event pairs, 1269 based on Foata normal form. 1/4427 useless extension candidates. Maximal degree in co-relation 11024. Up to 2693 conditions per place. [2024-01-29 22:49:52,668 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2024-01-29 22:49:52,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 94 transitions, 418 flow [2024-01-29 22:49:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:49:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:49:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2024-01-29 22:49:52,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543918918918919 [2024-01-29 22:49:52,670 INFO L175 Difference]: Start difference. First operand has 78 places, 67 transitions, 183 flow. Second operand 4 states and 322 transitions. [2024-01-29 22:49:52,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 94 transitions, 418 flow [2024-01-29 22:49:52,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 94 transitions, 404 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:49:52,673 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-01-29 22:49:52,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-01-29 22:49:52,674 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -32 predicate places. [2024-01-29 22:49:52,674 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-01-29 22:49:52,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 22:49:52,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 63 remaining) [2024-01-29 22:49:52,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 63 remaining) [2024-01-29 22:49:52,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 63 remaining) [2024-01-29 22:49:52,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 63 remaining) [2024-01-29 22:49:52,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 63 remaining) [2024-01-29 22:49:52,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 63 remaining) [2024-01-29 22:49:52,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 63 remaining) [2024-01-29 22:49:52,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 63 remaining) [2024-01-29 22:49:52,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 63 remaining) [2024-01-29 22:49:52,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 63 remaining) [2024-01-29 22:49:52,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 63 remaining) [2024-01-29 22:49:52,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 63 remaining) [2024-01-29 22:49:52,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (35 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 63 remaining) [2024-01-29 22:49:52,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 63 remaining) [2024-01-29 22:49:52,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 63 remaining) [2024-01-29 22:49:52,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 63 remaining) [2024-01-29 22:49:52,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 63 remaining) [2024-01-29 22:49:52,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 63 remaining) [2024-01-29 22:49:52,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 63 remaining) [2024-01-29 22:49:52,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 63 remaining) [2024-01-29 22:49:52,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 63 remaining) [2024-01-29 22:49:52,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 63 remaining) [2024-01-29 22:49:52,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:49:52,688 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:49:52,692 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:49:52,692 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:49:52,695 INFO L503 ceAbstractionStarter]: Automizer considered 22 witness invariants [2024-01-29 22:49:52,695 INFO L504 ceAbstractionStarter]: WitnessConsidered=22 [2024-01-29 22:49:52,696 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:49:52 BasicIcfg [2024-01-29 22:49:52,696 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:49:52,697 INFO L158 Benchmark]: Toolchain (without parser) took 9335.01ms. Allocated memory was 203.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 171.8MB in the beginning and 852.5MB in the end (delta: -680.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-01-29 22:49:52,697 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:49:52,697 INFO L158 Benchmark]: Witness Parser took 0.53ms. Allocated memory is still 203.4MB. Free memory was 172.1MB in the beginning and 172.1MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:49:52,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.23ms. Allocated memory is still 203.4MB. Free memory was 171.8MB in the beginning and 134.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-29 22:49:52,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.55ms. Allocated memory is still 203.4MB. Free memory was 134.0MB in the beginning and 131.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:52,698 INFO L158 Benchmark]: Boogie Preprocessor took 61.48ms. Allocated memory is still 203.4MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:49:52,698 INFO L158 Benchmark]: RCFGBuilder took 500.49ms. Allocated memory is still 203.4MB. Free memory was 128.6MB in the beginning and 158.8MB in the end (delta: -30.2MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2024-01-29 22:49:52,698 INFO L158 Benchmark]: TraceAbstraction took 8091.61ms. Allocated memory was 203.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 158.8MB in the beginning and 852.5MB in the end (delta: -693.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-01-29 22:49:52,699 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.53ms. Allocated memory is still 203.4MB. Free memory was 172.1MB in the beginning and 172.1MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.23ms. Allocated memory is still 203.4MB. Free memory was 171.8MB in the beginning and 134.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.55ms. Allocated memory is still 203.4MB. Free memory was 134.0MB in the beginning and 131.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.48ms. Allocated memory is still 203.4MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.49ms. Allocated memory is still 203.4MB. Free memory was 128.6MB in the beginning and 158.8MB in the end (delta: -30.2MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8091.61ms. Allocated memory was 203.4MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 158.8MB in the beginning and 852.5MB in the end (delta: -693.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1148]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1149]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1150]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1151]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1152]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1153]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1154]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1155]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1156]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1157]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1127]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1128]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1132]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1133]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1134]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1135]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1139]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1140]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1141]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1142]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1162]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 177 locations, 63 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: 7.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1176 IncrementalHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 2 mSDtfsCounter, 1176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=0, InterpolantAutomatonStates: 35, 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, 1.3s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:49:52,735 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