./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton.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.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 23:00:31,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 23:00:31,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 23:00:31,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 23:00:31,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 23:00:31,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 23:00:31,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 23:00:31,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 23:00:31,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 23:00:31,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 23:00:31,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 23:00:31,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 23:00:31,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 23:00:31,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 23:00:31,526 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 23:00:31,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 23:00:31,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 23:00:31,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 23:00:31,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 23:00:31,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 23:00:31,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 23:00:31,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 23:00:31,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 23:00:31,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 23:00:31,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 23:00:31,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 23:00:31,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 23:00:31,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 23:00:31,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 23:00:31,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 23:00:31,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 23:00:31,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 23:00:31,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 23:00:31,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 23:00:31,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 23:00:31,532 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 23:00:31,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 23:00:31,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 23:00:31,533 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 23:00:31,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 23:00:31,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 23:00:31,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 23:00:31,931 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 23:00:31,931 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 23:00:31,933 INFO L431 ainManager$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.yml/witness.yml [2024-01-29 23:00:32,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 23:00:32,057 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 23:00:32,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2024-01-29 23:00:33,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 23:00:33,419 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 23:00:33,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2024-01-29 23:00:33,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3377974/59d02116de234ab4a11eea2ca516f39a/FLAGea77a0e25 [2024-01-29 23:00:33,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3377974/59d02116de234ab4a11eea2ca516f39a [2024-01-29 23:00:33,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 23:00:33,459 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 23:00:33,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 23:00:33,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 23:00:33,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 23:00:33,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:32" (1/2) ... [2024-01-29 23:00:33,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1912de54 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 11:00:33, skipping insertion in model container [2024-01-29 23:00:33,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:32" (1/2) ... [2024-01-29 23:00:33,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1783cb1f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 11:00:33, skipping insertion in model container [2024-01-29 23:00:33,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:00:33" (2/2) ... [2024-01-29 23:00:33,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1912de54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:33, skipping insertion in model container [2024-01-29 23:00:33,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:00:33" (2/2) ... [2024-01-29 23:00:33,469 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 23:00:33,512 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 23:00:33,513 INFO L98 nessWitnessExtractor]: Location invariant before [L1139-L1139] (unsigned long )arg == 0UL [2024-01-29 23:00:33,513 INFO L98 nessWitnessExtractor]: Location invariant before [L1142-L1142] (unsigned long )arg == 0UL [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1150-L1150] (unsigned long )arg == 0UL [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1152-L1152] (unsigned long )arg == 0UL [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1162-L1162] v == 0 [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (expression == 0 || expression == 1) [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] (expression == 1) && (expression == 0) [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] expression == 1 [2024-01-29 23:00:33,514 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (0 <= expression) [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((expression == 1) && (expression == 0)) && (expression <= 1) [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1133-L1133] (unsigned long )arg == 0UL [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1132-L1132] (unsigned long )arg == 0UL [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1135-L1135] (unsigned long )arg == 0UL [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1127-L1127] (unsigned long )arg == 0UL [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1157-L1157] (unsigned long )arg == 0UL [2024-01-29 23:00:33,515 INFO L98 nessWitnessExtractor]: Location invariant before [L1155-L1155] (unsigned long )arg == 0UL [2024-01-29 23:00:33,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1156-L1156] (unsigned long )arg == 0UL [2024-01-29 23:00:33,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1148-L1148] (unsigned long )arg == 0UL [2024-01-29 23:00:33,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1128-L1128] (unsigned long )arg == 0UL [2024-01-29 23:00:33,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1153-L1153] (unsigned long )arg == 0UL [2024-01-29 23:00:33,516 INFO L98 nessWitnessExtractor]: Location invariant before [L1149-L1149] (unsigned long )arg == 0UL [2024-01-29 23:00:33,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1134-L1134] (unsigned long )arg == 0UL [2024-01-29 23:00:33,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1151-L1151] (unsigned long )arg == 0UL [2024-01-29 23:00:33,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1154-L1154] (unsigned long )arg == 0UL [2024-01-29 23:00:33,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1147-L1147] (unsigned long )arg == 0UL [2024-01-29 23:00:33,517 INFO L98 nessWitnessExtractor]: Location invariant before [L1141-L1141] (unsigned long )arg == 0UL [2024-01-29 23:00:33,518 INFO L98 nessWitnessExtractor]: Location invariant before [L1140-L1140] (unsigned long )arg == 0UL [2024-01-29 23:00:33,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 23:00:33,965 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.i[55547,55560] [2024-01-29 23:00:34,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 23:00:34,041 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 23:00:34,113 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.i[55547,55560] [2024-01-29 23:00:34,120 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int expression) { if (!expression) { ERROR: {reach_error();abort();}}; return; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 23:00:34,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 23:00:34,352 INFO L206 MainTranslator]: Completed translation [2024-01-29 23:00:34,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34 WrapperNode [2024-01-29 23:00:34,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 23:00:34,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 23:00:34,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 23:00:34,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 23:00:34,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,463 INFO L138 Inliner]: procedures = 324, calls = 51, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-01-29 23:00:34,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 23:00:34,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 23:00:34,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 23:00:34,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 23:00:34,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,523 INFO L175 MemorySlicer]: Split 17 memory accesses to 8 slices as follows [2, 2, 3, 2, 2, 2, 2, 2]. 18 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 2, 1, 1, 1, 1, 1]. [2024-01-29 23:00:34,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 23:00:34,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 23:00:34,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 23:00:34,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 23:00:34,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (1/1) ... [2024-01-29 23:00:34,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 23:00:34,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 23:00:34,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 23:00:34,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 23:00:34,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-01-29 23:00:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 23:00:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 23:00:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 23:00:34,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 23:00:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 23:00:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 23:00:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-29 23:00:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-29 23:00:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 23:00:34,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 23:00:34,682 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 23:00:34,845 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 23:00:34,847 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 23:00:35,079 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 23:00:35,079 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 23:00:35,164 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 23:00:35,164 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 23:00:35,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:00:35 BoogieIcfgContainer [2024-01-29 23:00:35,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 23:00:35,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 23:00:35,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 23:00:35,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 23:00:35,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 11:00:32" (1/4) ... [2024-01-29 23:00:35,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d518305 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 11:00:35, skipping insertion in model container [2024-01-29 23:00:35,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 11:00:33" (2/4) ... [2024-01-29 23:00:35,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d518305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:00:35, skipping insertion in model container [2024-01-29 23:00:35,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:00:34" (3/4) ... [2024-01-29 23:00:35,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d518305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:00:35, skipping insertion in model container [2024-01-29 23:00:35,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:00:35" (4/4) ... [2024-01-29 23:00:35,173 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2024-01-29 23:00:35,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 23:00:35,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-01-29 23:00:35,188 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 23:00:35,303 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-01-29 23:00:35,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 389 flow [2024-01-29 23:00:35,387 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-01-29 23:00:35,387 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 23:00:35,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 97 events. 6/97 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2024-01-29 23:00:35,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 146 transitions, 389 flow [2024-01-29 23:00:35,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 94 transitions, 239 flow [2024-01-29 23:00:35,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 23:00:35,418 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;@6feb77f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 23:00:35,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-01-29 23:00:35,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 23:00:35,420 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 23:00:35,420 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 23:00:35,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:35,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 23:00:35,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:35,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash 10028, now seen corresponding path program 1 times [2024-01-29 23:00:35,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:35,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141662805] [2024-01-29 23:00:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:35,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:35,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:35,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141662805] [2024-01-29 23:00:35,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141662805] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:35,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:35,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 23:00:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942237363] [2024-01-29 23:00:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:35,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 23:00:35,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:35,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 23:00:35,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 23:00:35,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 148 [2024-01-29 23:00:35,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 94 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:35,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:35,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 148 [2024-01-29 23:00:35,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:37,221 INFO L124 PetriNetUnfolderBase]: 7191/10961 cut-off events. [2024-01-29 23:00:37,221 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-01-29 23:00:37,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21263 conditions, 10961 events. 7191/10961 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 74041 event pairs, 5813 based on Foata normal form. 0/8343 useless extension candidates. Maximal degree in co-relation 21240. Up to 9585 conditions per place. [2024-01-29 23:00:37,318 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 53 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-29 23:00:37,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 92 transitions, 345 flow [2024-01-29 23:00:37,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 23:00:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 23:00:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-01-29 23:00:37,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-29 23:00:37,335 INFO L175 Difference]: Start difference. First operand has 108 places, 94 transitions, 239 flow. Second operand 3 states and 246 transitions. [2024-01-29 23:00:37,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 92 transitions, 345 flow [2024-01-29 23:00:37,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 311 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-29 23:00:37,363 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 199 flow [2024-01-29 23:00:37,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2024-01-29 23:00:37,368 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -15 predicate places. [2024-01-29 23:00:37,368 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 199 flow [2024-01-29 23:00:37,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:37,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:37,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 23:00:37,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 23:00:37,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:37,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:37,370 INFO L85 PathProgramCache]: Analyzing trace with hash 299191131, now seen corresponding path program 1 times [2024-01-29 23:00:37,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:37,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835395153] [2024-01-29 23:00:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:37,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:37,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:37,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835395153] [2024-01-29 23:00:37,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835395153] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:37,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:37,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:37,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384056679] [2024-01-29 23:00:37,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:37,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:37,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:37,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 148 [2024-01-29 23:00:37,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:37,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:37,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 148 [2024-01-29 23:00:37,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:38,403 INFO L124 PetriNetUnfolderBase]: 7191/10295 cut-off events. [2024-01-29 23:00:38,403 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-01-29 23:00:38,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20081 conditions, 10295 events. 7191/10295 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 63283 event pairs, 5816 based on Foata normal form. 0/7677 useless extension candidates. Maximal degree in co-relation 11202. Up to 9599 conditions per place. [2024-01-29 23:00:38,447 INFO L140 encePairwiseOnDemand]: 135/148 looper letters, 51 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-29 23:00:38,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 79 transitions, 285 flow [2024-01-29 23:00:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-01-29 23:00:38,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594594594594595 [2024-01-29 23:00:38,450 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 199 flow. Second operand 4 states and 272 transitions. [2024-01-29 23:00:38,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 79 transitions, 285 flow [2024-01-29 23:00:38,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 79 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:38,452 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 177 flow [2024-01-29 23:00:38,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2024-01-29 23:00:38,453 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -25 predicate places. [2024-01-29 23:00:38,453 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 177 flow [2024-01-29 23:00:38,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:38,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:38,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:38,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 23:00:38,454 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:38,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1146296624, now seen corresponding path program 1 times [2024-01-29 23:00:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364960348] [2024-01-29 23:00:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364960348] [2024-01-29 23:00:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364960348] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:38,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:38,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:38,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408651409] [2024-01-29 23:00:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:38,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:38,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 23:00:38,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:38,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:38,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 23:00:38,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:39,203 INFO L124 PetriNetUnfolderBase]: 7198/10302 cut-off events. [2024-01-29 23:00:39,203 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-01-29 23:00:39,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20097 conditions, 10302 events. 7198/10302 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 63320 event pairs, 5810 based on Foata normal form. 0/7686 useless extension candidates. Maximal degree in co-relation 20078. Up to 9597 conditions per place. [2024-01-29 23:00:39,262 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 55 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-01-29 23:00:39,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 295 flow [2024-01-29 23:00:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2024-01-29 23:00:39,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050675675675675 [2024-01-29 23:00:39,264 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 177 flow. Second operand 4 states and 299 transitions. [2024-01-29 23:00:39,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 295 flow [2024-01-29 23:00:39,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:39,266 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 174 flow [2024-01-29 23:00:39,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-01-29 23:00:39,267 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -26 predicate places. [2024-01-29 23:00:39,267 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 174 flow [2024-01-29 23:00:39,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:39,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:39,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:39,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 23:00:39,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:39,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -584594441, now seen corresponding path program 1 times [2024-01-29 23:00:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551041204] [2024-01-29 23:00:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:39,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:39,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551041204] [2024-01-29 23:00:39,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551041204] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:39,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:39,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:39,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056578395] [2024-01-29 23:00:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:39,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:39,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:39,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 23:00:39,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:39,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:39,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 23:00:39,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:40,046 INFO L124 PetriNetUnfolderBase]: 7191/10405 cut-off events. [2024-01-29 23:00:40,046 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-01-29 23:00:40,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20190 conditions, 10405 events. 7191/10405 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 60967 event pairs, 4197 based on Foata normal form. 510/9055 useless extension candidates. Maximal degree in co-relation 11286. Up to 7885 conditions per place. [2024-01-29 23:00:40,096 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 23:00:40,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 95 transitions, 363 flow [2024-01-29 23:00:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 23:00:40,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 23:00:40,100 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 174 flow. Second operand 4 states and 317 transitions. [2024-01-29 23:00:40,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 95 transitions, 363 flow [2024-01-29 23:00:40,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 95 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:40,102 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 169 flow [2024-01-29 23:00:40,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-01-29 23:00:40,102 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -28 predicate places. [2024-01-29 23:00:40,103 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 169 flow [2024-01-29 23:00:40,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 4 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:40,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:40,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:40,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 23:00:40,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:40,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -74460360, now seen corresponding path program 1 times [2024-01-29 23:00:40,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:40,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204538260] [2024-01-29 23:00:40,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:40,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:40,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:40,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204538260] [2024-01-29 23:00:40,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204538260] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:40,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:40,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607032642] [2024-01-29 23:00:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:40,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:40,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:40,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:40,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:40,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 23:00:40,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 169 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:40,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:40,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 23:00:40,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:41,005 INFO L124 PetriNetUnfolderBase]: 5528/8052 cut-off events. [2024-01-29 23:00:41,005 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-29 23:00:41,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15624 conditions, 8052 events. 5528/8052 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 49289 event pairs, 530 based on Foata normal form. 442/7416 useless extension candidates. Maximal degree in co-relation 8748. Up to 5903 conditions per place. [2024-01-29 23:00:41,031 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-29 23:00:41,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 93 transitions, 361 flow [2024-01-29 23:00:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 23:00:41,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 23:00:41,033 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 169 flow. Second operand 4 states and 317 transitions. [2024-01-29 23:00:41,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 93 transitions, 361 flow [2024-01-29 23:00:41,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:41,035 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 164 flow [2024-01-29 23:00:41,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=70} [2024-01-29 23:00:41,036 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-29 23:00:41,036 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 164 flow [2024-01-29 23:00:41,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:41,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:41,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 23:00:41,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:41,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2098387367, now seen corresponding path program 1 times [2024-01-29 23:00:41,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:41,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597348615] [2024-01-29 23:00:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:41,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:41,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597348615] [2024-01-29 23:00:41,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597348615] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:41,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:41,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:41,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050212563] [2024-01-29 23:00:41,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:41,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:41,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:41,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 23:00:41,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 70 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:41,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 23:00:41,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:41,466 INFO L124 PetriNetUnfolderBase]: 4095/6005 cut-off events. [2024-01-29 23:00:41,466 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-01-29 23:00:41,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11680 conditions, 6005 events. 4095/6005 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 32847 event pairs, 823 based on Foata normal form. 334/5845 useless extension candidates. Maximal degree in co-relation 6555. Up to 4245 conditions per place. [2024-01-29 23:00:41,492 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-29 23:00:41,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 359 flow [2024-01-29 23:00:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 23:00:41,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 23:00:41,494 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 164 flow. Second operand 4 states and 317 transitions. [2024-01-29 23:00:41,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 359 flow [2024-01-29 23:00:41,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 91 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:41,495 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 159 flow [2024-01-29 23:00:41,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2024-01-29 23:00:41,496 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -32 predicate places. [2024-01-29 23:00:41,496 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 159 flow [2024-01-29 23:00:41,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:41,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:41,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 23:00:41,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:41,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:41,498 INFO L85 PathProgramCache]: Analyzing trace with hash 164710810, now seen corresponding path program 1 times [2024-01-29 23:00:41,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:41,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706287022] [2024-01-29 23:00:41,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:41,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:41,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:41,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:41,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706287022] [2024-01-29 23:00:41,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706287022] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:41,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:41,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:41,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753974664] [2024-01-29 23:00:41,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:41,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:41,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:41,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:41,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-29 23:00:41,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:41,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-29 23:00:41,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:41,880 INFO L124 PetriNetUnfolderBase]: 3032/4442 cut-off events. [2024-01-29 23:00:41,880 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-01-29 23:00:41,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8726 conditions, 4442 events. 3032/4442 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 23554 event pairs, 494 based on Foata normal form. 214/4514 useless extension candidates. Maximal degree in co-relation 4911. Up to 2671 conditions per place. [2024-01-29 23:00:41,899 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-01-29 23:00:41,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 357 flow [2024-01-29 23:00:41,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:41,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:41,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-29 23:00:41,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-29 23:00:41,901 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 159 flow. Second operand 4 states and 317 transitions. [2024-01-29 23:00:41,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 357 flow [2024-01-29 23:00:41,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:41,903 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 154 flow [2024-01-29 23:00:41,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2024-01-29 23:00:41,904 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -34 predicate places. [2024-01-29 23:00:41,904 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 154 flow [2024-01-29 23:00:41,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:41,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:41,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:41,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 23:00:41,905 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:41,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1102324195, now seen corresponding path program 1 times [2024-01-29 23:00:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852263894] [2024-01-29 23:00:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 23:00:42,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:42,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852263894] [2024-01-29 23:00:42,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852263894] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:42,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:42,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 23:00:42,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600441820] [2024-01-29 23:00:42,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:42,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:42,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:42,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:42,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2024-01-29 23:00:42,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:42,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:42,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2024-01-29 23:00:42,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:42,523 INFO L124 PetriNetUnfolderBase]: 3743/5425 cut-off events. [2024-01-29 23:00:42,523 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-01-29 23:00:42,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10905 conditions, 5425 events. 3743/5425 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 27127 event pairs, 1249 based on Foata normal form. 1/5170 useless extension candidates. Maximal degree in co-relation 6169. Up to 3255 conditions per place. [2024-01-29 23:00:42,535 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 66 selfloop transitions, 4 changer transitions 13/98 dead transitions. [2024-01-29 23:00:42,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 402 flow [2024-01-29 23:00:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2024-01-29 23:00:42,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-29 23:00:42,538 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 154 flow. Second operand 4 states and 328 transitions. [2024-01-29 23:00:42,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 402 flow [2024-01-29 23:00:42,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 98 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:42,540 INFO L231 Difference]: Finished difference. Result has 78 places, 67 transitions, 183 flow [2024-01-29 23:00:42,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=78, PETRI_TRANSITIONS=67} [2024-01-29 23:00:42,541 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-29 23:00:42,541 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 67 transitions, 183 flow [2024-01-29 23:00:42,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 23:00:42,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:42,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:42,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 23:00:42,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-29 23:00:42,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash -224447279, now seen corresponding path program 2 times [2024-01-29 23:00:42,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:42,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943122909] [2024-01-29 23:00:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:42,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 23:00:42,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 23:00:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 23:00:42,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 23:00:42,676 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 23:00:42,677 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (62 of 63 remaining) [2024-01-29 23:00:42,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 63 remaining) [2024-01-29 23:00:42,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 63 remaining) [2024-01-29 23:00:42,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 63 remaining) [2024-01-29 23:00:42,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 63 remaining) [2024-01-29 23:00:42,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 63 remaining) [2024-01-29 23:00:42,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 63 remaining) [2024-01-29 23:00:42,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 63 remaining) [2024-01-29 23:00:42,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 63 remaining) [2024-01-29 23:00:42,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 63 remaining) [2024-01-29 23:00:42,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 63 remaining) [2024-01-29 23:00:42,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 63 remaining) [2024-01-29 23:00:42,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 63 remaining) [2024-01-29 23:00:42,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 63 remaining) [2024-01-29 23:00:42,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 63 remaining) [2024-01-29 23:00:42,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 63 remaining) [2024-01-29 23:00:42,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 63 remaining) [2024-01-29 23:00:42,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 63 remaining) [2024-01-29 23:00:42,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 63 remaining) [2024-01-29 23:00:42,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 23:00:42,690 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:42,696 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 23:00:42,708 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 23:00:42,836 INFO L503 ceAbstractionStarter]: Automizer considered 22 witness invariants [2024-01-29 23:00:42,836 INFO L504 ceAbstractionStarter]: WitnessConsidered=22 [2024-01-29 23:00:42,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 11:00:42 BasicIcfg [2024-01-29 23:00:42,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 23:00:42,837 INFO L158 Benchmark]: Toolchain (without parser) took 9377.93ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 81.0MB in the beginning and 902.4MB in the end (delta: -821.4MB). Peak memory consumption was 354.9MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,837 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 23:00:42,837 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 23:00:42,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.42ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 80.8MB in the beginning and 168.3MB in the end (delta: -87.4MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.03ms. Allocated memory is still 211.8MB. Free memory was 168.3MB in the beginning and 166.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,838 INFO L158 Benchmark]: Boogie Preprocessor took 129.61ms. Allocated memory is still 211.8MB. Free memory was 166.1MB in the beginning and 163.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,838 INFO L158 Benchmark]: RCFGBuilder took 570.50ms. Allocated memory is still 211.8MB. Free memory was 163.0MB in the beginning and 128.4MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,839 INFO L158 Benchmark]: TraceAbstraction took 7670.68ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 128.4MB in the beginning and 902.4MB in the end (delta: -774.0MB). Peak memory consumption was 330.1MB. Max. memory is 16.1GB. [2024-01-29 23:00:42,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 108.5MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.42ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 80.8MB in the beginning and 168.3MB in the end (delta: -87.4MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.03ms. Allocated memory is still 211.8MB. Free memory was 168.3MB in the beginning and 166.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.61ms. Allocated memory is still 211.8MB. Free memory was 166.1MB in the beginning and 163.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.50ms. Allocated memory is still 211.8MB. Free memory was 163.0MB in the beginning and 128.4MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7670.68ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 128.4MB in the beginning and 902.4MB in the end (delta: -774.0MB). Peak memory consumption was 330.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; [L1161] 0 pthread_t t; VAL [t={5:0}, v={0:0}] [L1162] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[v],IntegerLiteral[0]]]] [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, t={5:0}, v={0:0}] [L1163] 0 \read(t) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; VAL [arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={0:0}] [L1147] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={0:0}] [L1127] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1127] 2 v = malloc(sizeof(char)) [L1148] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1148] 1 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1128] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1128] 2 return 0; [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1149] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1150] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1151] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1152] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1132] 6 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1132] 5 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1132] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1153] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1153] 1 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1133] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1133] 3 v[0] = 'X' [L1134] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1135] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1135] 3 return 0; [L1133] 5 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1133] 5 v[0] = 'X' [L1134] 5 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1135] 5 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1135] 5 return 0; [L1133] 6 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1133] 6 v[0] = 'X' [L1134] 6 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1135] 6 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1135] 6 return 0; [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1154] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1154] 1 \read(t3) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1139] 4 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1140] 4 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1140] 4 v[0] = 'Y' [L1141] 4 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1142] 4 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1142] 4 return 0; [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1155] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1155] 1 \read(t4) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1156] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1156] 1 \read(t5) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1={7:0}, t2={8:0}, t3={3:0}, t4={9:0}, t5={6:0}, v={-6:0}] [L1157] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1157] 1 return 0; [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t={5:0}, v={-6:0}] [L1164] EXPR 0 v[0] [L1164] CALL 0 __VERIFIER_assert(v[0] == 'X') [L1123] COND TRUE 0 !expression VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-6:0}] [L1123] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, v={-6:0}] - UnprovableResult [Line: 1147]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1148]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1149]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1150]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1151]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1152]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1153]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1154]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1155]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1156]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1157]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1150]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1149]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1147]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1152]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1151]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1127]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1128]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1132]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1133]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1134]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1135]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1139]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1140]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1141]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1142]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1162]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1162]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1147]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1151]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1152]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1149]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1150]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 177 locations, 63 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 548 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 527 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 991 IncrementalHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 1 mSDtfsCounter, 991 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 23:00:42,883 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE