./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 13967880 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-wip.fs.extract-columns-1396788-m [2024-02-02 16:06:50,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 16:06:50,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 16:06:50,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 16:06:50,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 16:06:50,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 16:06:50,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 16:06:50,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 16:06:50,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 16:06:50,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 16:06:50,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 16:06:50,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 16:06:50,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 16:06:50,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 16:06:50,368 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 16:06:50,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 16:06:50,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 16:06:50,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 16:06:50,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 16:06:50,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 16:06:50,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 16:06:50,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 16:06:50,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 16:06:50,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 16:06:50,370 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 16:06:50,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 16:06:50,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 16:06:50,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 16:06:50,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 16:06:50,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 16:06:50,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 16:06:50,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 16:06:50,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 16:06:50,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 16:06:50,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 16:06:50,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 16:06:50,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 16:06:50,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 16:06:50,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 16:06:50,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 16:06:50,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 16:06:50,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 16:06:50,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 16:06:50,649 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 16:06:50,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-02-02 16:06:51,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 16:06:52,163 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 16:06:52,163 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-02-02 16:06:52,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f6fd274c/0ef6019d70bc4b01b550af41e43aae58/FLAG2617a3ec5 [2024-02-02 16:06:52,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f6fd274c/0ef6019d70bc4b01b550af41e43aae58 [2024-02-02 16:06:52,207 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 16:06:52,208 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 16:06:52,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.yml/witness.yml [2024-02-02 16:06:52,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 16:06:52,296 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 16:06:52,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 16:06:52,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 16:06:52,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 16:06:52,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 04:06:52" (1/2) ... [2024-02-02 16:06:52,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2356fa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 04:06:52, skipping insertion in model container [2024-02-02 16:06:52,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 04:06:52" (1/2) ... [2024-02-02 16:06:52,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25be75b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 04:06:52, skipping insertion in model container [2024-02-02 16:06:52,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 04:06:52" (2/2) ... [2024-02-02 16:06:52,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2356fa89 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52, skipping insertion in model container [2024-02-02 16:06:52,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 04:06:52" (2/2) ... [2024-02-02 16:06:52,306 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 16:06:52,402 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 16:06:52,403 INFO L101 nessWitnessExtractor]: Location invariant before [L1142-L1142] (unsigned long )arg == 0UL [2024-02-02 16:06:52,403 INFO L101 nessWitnessExtractor]: Location invariant before [L1150-L1150] (unsigned long )arg == 0UL [2024-02-02 16:06:52,404 INFO L101 nessWitnessExtractor]: Location invariant before [L1151-L1151] (unsigned long )arg == 0UL [2024-02-02 16:06:52,404 INFO L101 nessWitnessExtractor]: Location invariant before [L1157-L1157] (unsigned long )arg == 0UL [2024-02-02 16:06:52,404 INFO L101 nessWitnessExtractor]: Location invariant before [L1148-L1148] (unsigned long )arg == 0UL [2024-02-02 16:06:52,404 INFO L101 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1155-L1155] (unsigned long )arg == 0UL [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1162-L1162] v == 0 [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1153-L1153] (unsigned long )arg == 0UL [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1133-L1133] (unsigned long )arg == 0UL [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1123-L1123] expression == 0 [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1154-L1154] (unsigned long )arg == 0UL [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1127-L1127] (unsigned long )arg == 0UL [2024-02-02 16:06:52,405 INFO L101 nessWitnessExtractor]: Location invariant before [L1147-L1147] (unsigned long )arg == 0UL [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant after [L1123-L1123] expression == 1 [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant before [L1134-L1134] (unsigned long )arg == 0UL [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant after [L1123-L1123] expression == 0 [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant before [L1156-L1156] (unsigned long )arg == 0UL [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant before [L1132-L1132] (unsigned long )arg == 0UL [2024-02-02 16:06:52,406 INFO L101 nessWitnessExtractor]: Location invariant before [L1152-L1152] (unsigned long )arg == 0UL [2024-02-02 16:06:52,407 INFO L101 nessWitnessExtractor]: Location invariant before [L1128-L1128] (unsigned long )arg == 0UL [2024-02-02 16:06:52,407 INFO L101 nessWitnessExtractor]: Location invariant before [L1149-L1149] (unsigned long )arg == 0UL [2024-02-02 16:06:52,407 INFO L101 nessWitnessExtractor]: Location invariant before [L1123-L1123] expression == 1 [2024-02-02 16:06:52,407 INFO L101 nessWitnessExtractor]: Location invariant before [L1135-L1135] (unsigned long )arg == 0UL [2024-02-02 16:06:52,408 INFO L101 nessWitnessExtractor]: Location invariant before [L1141-L1141] (unsigned long )arg == 0UL [2024-02-02 16:06:52,408 INFO L101 nessWitnessExtractor]: Location invariant after [L1123-L1123] expression == 1 [2024-02-02 16:06:52,408 INFO L101 nessWitnessExtractor]: Location invariant before [L1139-L1139] (unsigned long )arg == 0UL [2024-02-02 16:06:52,408 INFO L101 nessWitnessExtractor]: Location invariant before [L1140-L1140] (unsigned long )arg == 0UL [2024-02-02 16:06:52,448 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-02 16:06:52,819 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] [2024-02-02 16:06:52,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 16:06:52,853 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-02 16:06:52,907 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] Start Parsing Local Start Parsing Local [2024-02-02 16:06:52,909 WARN L424 MainDispatcher]: Unable to annotate ; 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 [2024-02-02 16:06:52,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 16:06:52,983 INFO L208 MainTranslator]: Completed translation [2024-02-02 16:06:52,984 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52 WrapperNode [2024-02-02 16:06:52,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 16:06:52,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 16:06:52,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 16:06:52,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 16:06:52,991 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 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,017 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 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,042 INFO L138 Inliner]: procedures = 324, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2024-02-02 16:06:53,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 16:06:53,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 16:06:53,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 16:06:53,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 16:06:53,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,085 INFO L175 MemorySlicer]: Split 18 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 4]. 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, 1, 2]. [2024-02-02 16:06:53,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 16:06:53,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 16:06:53,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 16:06:53,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 16:06:53,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (1/1) ... [2024-02-02 16:06:53,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 16:06:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 16:06:53,148 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) [2024-02-02 16:06:53,167 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 [2024-02-02 16:06:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 16:06:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 16:06:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-02-02 16:06:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-02-02 16:06:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 16:06:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 16:06:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 16:06:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 16:06:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 16:06:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 16:06:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 16:06:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-02-02 16:06:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 16:06:53,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 16:06:53,190 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 16:06:53,334 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 16:06:53,336 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 16:06:53,567 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 16:06:53,567 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 16:06:53,670 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 16:06:53,670 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 16:06:53,670 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 04:06:53 BoogieIcfgContainer [2024-02-02 16:06:53,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 16:06:53,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 16:06:53,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 16:06:53,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 16:06:53,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 04:06:52" (1/4) ... [2024-02-02 16:06:53,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316161d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 04:06:53, skipping insertion in model container [2024-02-02 16:06:53,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 04:06:52" (2/4) ... [2024-02-02 16:06:53,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316161d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 04:06:53, skipping insertion in model container [2024-02-02 16:06:53,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 04:06:52" (3/4) ... [2024-02-02 16:06:53,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316161d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 04:06:53, skipping insertion in model container [2024-02-02 16:06:53,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 04:06:53" (4/4) ... [2024-02-02 16:06:53,677 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-02-02 16:06:53,691 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 16:06:53,691 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-02-02 16:06:53,691 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 16:06:53,793 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-02-02 16:06:53,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 151 transitions, 399 flow [2024-02-02 16:06:53,853 INFO L124 PetriNetUnfolderBase]: 6/102 cut-off events. [2024-02-02 16:06:53,855 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-02 16:06:53,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 102 events. 6/102 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2024-02-02 16:06:53,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 151 transitions, 399 flow [2024-02-02 16:06:53,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 101 transitions, 253 flow [2024-02-02 16:06:53,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 16:06:53,882 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;@65e59f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 16:06:53,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2024-02-02 16:06:53,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 16:06:53,887 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 16:06:53,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 16:06:53,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:53,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 16:06:53,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:53,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash 10861, now seen corresponding path program 1 times [2024-02-02 16:06:53,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:53,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125044097] [2024-02-02 16:06:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:54,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125044097] [2024-02-02 16:06:54,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125044097] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:54,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:54,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 16:06:54,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894444291] [2024-02-02 16:06:54,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:54,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 16:06:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 16:06:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 16:06:54,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 153 [2024-02-02 16:06:54,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 101 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 16:06:54,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:54,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 153 [2024-02-02 16:06:54,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:06:55,504 INFO L124 PetriNetUnfolderBase]: 7191/10960 cut-off events. [2024-02-02 16:06:55,505 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-02-02 16:06:55,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21262 conditions, 10960 events. 7191/10960 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 73656 event pairs, 5813 based on Foata normal form. 1/8338 useless extension candidates. Maximal degree in co-relation 21233. Up to 9585 conditions per place. [2024-02-02 16:06:55,703 INFO L140 encePairwiseOnDemand]: 145/153 looper letters, 53 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2024-02-02 16:06:55,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 98 transitions, 357 flow [2024-02-02 16:06:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 16:06:55,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 16:06:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-02-02 16:06:55,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708061002178649 [2024-02-02 16:06:55,719 INFO L175 Difference]: Start difference. First operand has 114 places, 101 transitions, 253 flow. Second operand 3 states and 262 transitions. [2024-02-02 16:06:55,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 98 transitions, 357 flow [2024-02-02 16:06:55,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 98 transitions, 323 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-02 16:06:55,741 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 211 flow [2024-02-02 16:06:55,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2024-02-02 16:06:55,746 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -15 predicate places. [2024-02-02 16:06:55,750 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 211 flow [2024-02-02 16:06:55,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 16:06:55,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:55,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 16:06:55,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 16:06:55,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:55,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:55,752 INFO L85 PathProgramCache]: Analyzing trace with hash 324036824, now seen corresponding path program 1 times [2024-02-02 16:06:55,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:55,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920109128] [2024-02-02 16:06:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:55,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920109128] [2024-02-02 16:06:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920109128] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:55,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:55,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:06:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642604511] [2024-02-02 16:06:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:55,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:06:55,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:55,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:06:55,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:06:55,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 153 [2024-02-02 16:06:55,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-02-02 16:06:55,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:55,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 153 [2024-02-02 16:06:55,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:06:56,735 INFO L124 PetriNetUnfolderBase]: 7191/10301 cut-off events. [2024-02-02 16:06:56,736 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-02-02 16:06:56,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20087 conditions, 10301 events. 7191/10301 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 62962 event pairs, 5816 based on Foata normal form. 0/7678 useless extension candidates. Maximal degree in co-relation 11202. Up to 9599 conditions per place. [2024-02-02 16:06:56,782 INFO L140 encePairwiseOnDemand]: 140/153 looper letters, 51 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-02-02 16:06:56,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 297 flow [2024-02-02 16:06:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:06:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:06:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 292 transitions. [2024-02-02 16:06:56,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.477124183006536 [2024-02-02 16:06:56,785 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 211 flow. Second operand 4 states and 292 transitions. [2024-02-02 16:06:56,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 297 flow [2024-02-02 16:06:56,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 85 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:06:56,787 INFO L231 Difference]: Finished difference. Result has 89 places, 84 transitions, 189 flow [2024-02-02 16:06:56,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2024-02-02 16:06:56,787 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -25 predicate places. [2024-02-02 16:06:56,788 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 189 flow [2024-02-02 16:06:56,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-02-02 16:06:56,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:56,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 16:06:56,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 16:06:56,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:56,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1704975631, now seen corresponding path program 1 times [2024-02-02 16:06:56,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:56,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129519159] [2024-02-02 16:06:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:56,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:56,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129519159] [2024-02-02 16:06:56,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129519159] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:56,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:56,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:06:56,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558121902] [2024-02-02 16:06:56,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:56,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:06:56,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:06:56,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:06:56,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2024-02-02 16:06:56,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2024-02-02 16:06:56,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:56,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2024-02-02 16:06:56,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:06:57,708 INFO L124 PetriNetUnfolderBase]: 7198/10308 cut-off events. [2024-02-02 16:06:57,708 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-02-02 16:06:57,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20103 conditions, 10308 events. 7198/10308 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 62939 event pairs, 5810 based on Foata normal form. 0/7687 useless extension candidates. Maximal degree in co-relation 20084. Up to 9597 conditions per place. [2024-02-02 16:06:57,763 INFO L140 encePairwiseOnDemand]: 149/153 looper letters, 55 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2024-02-02 16:06:57,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 86 transitions, 307 flow [2024-02-02 16:06:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:06:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:06:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2024-02-02 16:06:57,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5212418300653595 [2024-02-02 16:06:57,765 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 189 flow. Second operand 4 states and 319 transitions. [2024-02-02 16:06:57,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 86 transitions, 307 flow [2024-02-02 16:06:57,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 86 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:06:57,767 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 186 flow [2024-02-02 16:06:57,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2024-02-02 16:06:57,768 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -26 predicate places. [2024-02-02 16:06:57,768 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 186 flow [2024-02-02 16:06:57,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2024-02-02 16:06:57,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:57,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 16:06:57,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 16:06:57,769 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:57,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:57,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1168335756, now seen corresponding path program 1 times [2024-02-02 16:06:57,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:57,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302654337] [2024-02-02 16:06:57,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:57,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:57,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:57,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302654337] [2024-02-02 16:06:57,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302654337] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:57,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:57,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:06:57,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318528254] [2024-02-02 16:06:57,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:57,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:06:57,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:57,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:06:57,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:06:57,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2024-02-02 16:06:57,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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) [2024-02-02 16:06:57,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:57,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2024-02-02 16:06:57,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:06:58,562 INFO L124 PetriNetUnfolderBase]: 7191/10423 cut-off events. [2024-02-02 16:06:58,563 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 16:06:58,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20208 conditions, 10423 events. 7191/10423 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 66330 event pairs, 921 based on Foata normal form. 510/9036 useless extension candidates. Maximal degree in co-relation 20190. Up to 7885 conditions per place. [2024-02-02 16:06:58,607 INFO L140 encePairwiseOnDemand]: 148/153 looper letters, 72 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-02-02 16:06:58,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 101 transitions, 375 flow [2024-02-02 16:06:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:06:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:06:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2024-02-02 16:06:58,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506535947712419 [2024-02-02 16:06:58,610 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 186 flow. Second operand 4 states and 337 transitions. [2024-02-02 16:06:58,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 101 transitions, 375 flow [2024-02-02 16:06:58,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 101 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:06:58,612 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 181 flow [2024-02-02 16:06:58,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2024-02-02 16:06:58,614 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -28 predicate places. [2024-02-02 16:06:58,614 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 181 flow [2024-02-02 16:06:58,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 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) [2024-02-02 16:06:58,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:58,615 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] [2024-02-02 16:06:58,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 16:06:58,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:58,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash 10635769, now seen corresponding path program 1 times [2024-02-02 16:06:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:58,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031750811] [2024-02-02 16:06:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:58,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:58,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:58,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031750811] [2024-02-02 16:06:58,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031750811] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:58,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:58,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:06:58,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122634737] [2024-02-02 16:06:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:06:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:06:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:06:58,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2024-02-02 16:06:58,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 181 flow. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2024-02-02 16:06:58,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:58,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2024-02-02 16:06:58,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:06:59,274 INFO L124 PetriNetUnfolderBase]: 5528/8020 cut-off events. [2024-02-02 16:06:59,274 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-02-02 16:06:59,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15592 conditions, 8020 events. 5528/8020 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 44817 event pairs, 2094 based on Foata normal form. 442/7397 useless extension candidates. Maximal degree in co-relation 15574. Up to 5903 conditions per place. [2024-02-02 16:06:59,312 INFO L140 encePairwiseOnDemand]: 148/153 looper letters, 72 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2024-02-02 16:06:59,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 99 transitions, 373 flow [2024-02-02 16:06:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:06:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:06:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2024-02-02 16:06:59,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506535947712419 [2024-02-02 16:06:59,314 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 181 flow. Second operand 4 states and 337 transitions. [2024-02-02 16:06:59,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 99 transitions, 373 flow [2024-02-02 16:06:59,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 99 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:06:59,318 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 176 flow [2024-02-02 16:06:59,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=81, 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=176, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-02-02 16:06:59,319 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -30 predicate places. [2024-02-02 16:06:59,320 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 176 flow [2024-02-02 16:06:59,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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) [2024-02-02 16:06:59,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:06:59,320 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] [2024-02-02 16:06:59,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 16:06:59,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:06:59,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:06:59,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1030283178, now seen corresponding path program 1 times [2024-02-02 16:06:59,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:06:59,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10044357] [2024-02-02 16:06:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:06:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:06:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:06:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:06:59,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:06:59,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10044357] [2024-02-02 16:06:59,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10044357] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:06:59,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:06:59,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:06:59,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246941726] [2024-02-02 16:06:59,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:06:59,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:06:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:06:59,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:06:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:06:59,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2024-02-02 16:06:59,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2024-02-02 16:06:59,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:06:59,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2024-02-02 16:06:59,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:07:00,001 INFO L124 PetriNetUnfolderBase]: 4095/6027 cut-off events. [2024-02-02 16:07:00,001 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-02-02 16:07:00,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11702 conditions, 6027 events. 4095/6027 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 35010 event pairs, 281 based on Foata normal form. 334/5868 useless extension candidates. Maximal degree in co-relation 11684. Up to 4245 conditions per place. [2024-02-02 16:07:00,083 INFO L140 encePairwiseOnDemand]: 148/153 looper letters, 72 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-02-02 16:07:00,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 97 transitions, 371 flow [2024-02-02 16:07:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:07:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:07:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2024-02-02 16:07:00,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506535947712419 [2024-02-02 16:07:00,085 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 176 flow. Second operand 4 states and 337 transitions. [2024-02-02 16:07:00,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 97 transitions, 371 flow [2024-02-02 16:07:00,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 97 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:07:00,087 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 171 flow [2024-02-02 16:07:00,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=79, 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=171, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-02-02 16:07:00,088 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -32 predicate places. [2024-02-02 16:07:00,088 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 171 flow [2024-02-02 16:07:00,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 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) [2024-02-02 16:07:00,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:07:00,088 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] [2024-02-02 16:07:00,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 16:07:00,089 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:07:00,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:07:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1356060965, now seen corresponding path program 1 times [2024-02-02 16:07:00,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:07:00,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072481746] [2024-02-02 16:07:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:07:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:07:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:07:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:07:00,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:07:00,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072481746] [2024-02-02 16:07:00,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072481746] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:07:00,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:07:00,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:07:00,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936697694] [2024-02-02 16:07:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:07:00,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:07:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:07:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:07:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:07:00,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 153 [2024-02-02 16:07:00,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2024-02-02 16:07:00,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:07:00,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 153 [2024-02-02 16:07:00,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:07:00,674 INFO L124 PetriNetUnfolderBase]: 3032/4448 cut-off events. [2024-02-02 16:07:00,674 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-02-02 16:07:00,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8732 conditions, 4448 events. 3032/4448 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 23568 event pairs, 494 based on Foata normal form. 214/4515 useless extension candidates. Maximal degree in co-relation 8714. Up to 2671 conditions per place. [2024-02-02 16:07:00,699 INFO L140 encePairwiseOnDemand]: 148/153 looper letters, 72 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-02-02 16:07:00,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 95 transitions, 369 flow [2024-02-02 16:07:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:07:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:07:00,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2024-02-02 16:07:00,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506535947712419 [2024-02-02 16:07:00,702 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 171 flow. Second operand 4 states and 337 transitions. [2024-02-02 16:07:00,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 95 transitions, 369 flow [2024-02-02 16:07:00,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 95 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:07:00,704 INFO L231 Difference]: Finished difference. Result has 80 places, 70 transitions, 166 flow [2024-02-02 16:07:00,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=77, 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=166, PETRI_PLACES=80, PETRI_TRANSITIONS=70} [2024-02-02 16:07:00,704 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -34 predicate places. [2024-02-02 16:07:00,705 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 166 flow [2024-02-02 16:07:00,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2024-02-02 16:07:00,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:07:00,705 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] [2024-02-02 16:07:00,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 16:07:00,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:07:00,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:07:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1997093743, now seen corresponding path program 1 times [2024-02-02 16:07:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:07:00,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467876480] [2024-02-02 16:07:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:07:00,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:07:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:07:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:07:01,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:07:01,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467876480] [2024-02-02 16:07:01,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467876480] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:07:01,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:07:01,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:07:01,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236741008] [2024-02-02 16:07:01,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:07:01,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:07:01,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:07:01,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:07:01,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:07:01,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 153 [2024-02-02 16:07:01,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-02-02 16:07:01,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:07:01,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 153 [2024-02-02 16:07:01,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:07:01,468 INFO L124 PetriNetUnfolderBase]: 3743/5433 cut-off events. [2024-02-02 16:07:01,469 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-02-02 16:07:01,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 5433 events. 3743/5433 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 27097 event pairs, 1249 based on Foata normal form. 3/5230 useless extension candidates. Maximal degree in co-relation 10898. Up to 3255 conditions per place. [2024-02-02 16:07:01,484 INFO L140 encePairwiseOnDemand]: 145/153 looper letters, 69 selfloop transitions, 4 changer transitions 13/104 dead transitions. [2024-02-02 16:07:01,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 104 transitions, 420 flow [2024-02-02 16:07:01,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:07:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:07:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2024-02-02 16:07:01,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5637254901960784 [2024-02-02 16:07:01,486 INFO L175 Difference]: Start difference. First operand has 80 places, 70 transitions, 166 flow. Second operand 4 states and 345 transitions. [2024-02-02 16:07:01,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 104 transitions, 420 flow [2024-02-02 16:07:01,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 104 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:07:01,490 INFO L231 Difference]: Finished difference. Result has 84 places, 73 transitions, 199 flow [2024-02-02 16:07:01,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=84, PETRI_TRANSITIONS=73} [2024-02-02 16:07:01,490 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -30 predicate places. [2024-02-02 16:07:01,490 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 73 transitions, 199 flow [2024-02-02 16:07:01,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-02-02 16:07:01,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 16:07:01,491 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] [2024-02-02 16:07:01,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 16:07:01,491 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 63 more)] === [2024-02-02 16:07:01,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 16:07:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash 408669729, now seen corresponding path program 2 times [2024-02-02 16:07:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 16:07:01,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225523391] [2024-02-02 16:07:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 16:07:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 16:07:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 16:07:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 16:07:01,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 16:07:01,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225523391] [2024-02-02 16:07:01,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225523391] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 16:07:01,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 16:07:01,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 16:07:01,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312438019] [2024-02-02 16:07:01,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 16:07:01,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 16:07:01,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 16:07:01,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 16:07:01,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 16:07:01,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 153 [2024-02-02 16:07:01,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 73 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-02-02 16:07:01,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 16:07:01,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 153 [2024-02-02 16:07:01,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 16:07:02,203 INFO L124 PetriNetUnfolderBase]: 3197/4624 cut-off events. [2024-02-02 16:07:02,203 INFO L125 PetriNetUnfolderBase]: For 1918/1918 co-relation queries the response was YES. [2024-02-02 16:07:02,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11031 conditions, 4624 events. 3197/4624 cut-off events. For 1918/1918 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 22753 event pairs, 1269 based on Foata normal form. 3/4421 useless extension candidates. Maximal degree in co-relation 11026. Up to 2693 conditions per place. [2024-02-02 16:07:02,216 INFO L140 encePairwiseOnDemand]: 145/153 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2024-02-02 16:07:02,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 96 transitions, 422 flow [2024-02-02 16:07:02,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 16:07:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 16:07:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2024-02-02 16:07:02,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2024-02-02 16:07:02,218 INFO L175 Difference]: Start difference. First operand has 84 places, 73 transitions, 199 flow. Second operand 4 states and 336 transitions. [2024-02-02 16:07:02,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 96 transitions, 422 flow [2024-02-02 16:07:02,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 96 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 16:07:02,222 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-02-02 16:07:02,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-02-02 16:07:02,222 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -36 predicate places. [2024-02-02 16:07:02,223 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-02-02 16:07:02,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-02-02 16:07:02,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 66 remaining) [2024-02-02 16:07:02,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 66 remaining) [2024-02-02 16:07:02,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 66 remaining) [2024-02-02 16:07:02,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 66 remaining) [2024-02-02 16:07:02,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 66 remaining) [2024-02-02 16:07:02,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 66 remaining) [2024-02-02 16:07:02,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 66 remaining) [2024-02-02 16:07:02,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 66 remaining) [2024-02-02 16:07:02,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 66 remaining) [2024-02-02 16:07:02,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 66 remaining) [2024-02-02 16:07:02,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 66 remaining) [2024-02-02 16:07:02,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 66 remaining) [2024-02-02 16:07:02,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 66 remaining) [2024-02-02 16:07:02,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 66 remaining) [2024-02-02 16:07:02,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 66 remaining) [2024-02-02 16:07:02,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 66 remaining) [2024-02-02 16:07:02,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 66 remaining) [2024-02-02 16:07:02,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 66 remaining) [2024-02-02 16:07:02,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 66 remaining) [2024-02-02 16:07:02,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 66 remaining) [2024-02-02 16:07:02,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 16:07:02,237 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 16:07:02,241 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 16:07:02,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 16:07:02,244 INFO L503 ceAbstractionStarter]: Automizer considered 25 witness invariants [2024-02-02 16:07:02,245 INFO L504 ceAbstractionStarter]: WitnessConsidered=25 [2024-02-02 16:07:02,245 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 04:07:02 BasicIcfg [2024-02-02 16:07:02,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 16:07:02,246 INFO L158 Benchmark]: Toolchain (without parser) took 9949.76ms. Allocated memory was 151.0MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 72.1MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-02-02 16:07:02,246 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 16:07:02,246 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 16:07:02,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 686.51ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 71.9MB in the beginning and 160.5MB in the end (delta: -88.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-02-02 16:07:02,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.43ms. Allocated memory is still 230.7MB. Free memory was 160.5MB in the beginning and 158.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 16:07:02,247 INFO L158 Benchmark]: Boogie Preprocessor took 80.51ms. Allocated memory is still 230.7MB. Free memory was 158.4MB in the beginning and 155.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 16:07:02,247 INFO L158 Benchmark]: RCFGBuilder took 546.00ms. Allocated memory is still 230.7MB. Free memory was 155.2MB in the beginning and 118.5MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-02-02 16:07:02,248 INFO L158 Benchmark]: TraceAbstraction took 8573.78ms. Allocated memory was 230.7MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 118.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-02-02 16:07:02,249 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 151.0MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 151.0MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 686.51ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 71.9MB in the beginning and 160.5MB in the end (delta: -88.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.43ms. Allocated memory is still 230.7MB. Free memory was 160.5MB in the beginning and 158.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.51ms. Allocated memory is still 230.7MB. Free memory was 158.4MB in the beginning and 155.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 546.00ms. Allocated memory is still 230.7MB. Free memory was 155.2MB in the beginning and 118.5MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8573.78ms. Allocated memory was 230.7MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 118.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. 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]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1123]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1123]: 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, 182 locations, 66 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: 8.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 592 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 557 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1179 IncrementalHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 15 mSDtfsCounter, 1179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=253occurred 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, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 398 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 26 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 16:07:02,284 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