./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-3d25acf-m [2024-01-30 14:15:05,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:15:05,639 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:15:05,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:15:05,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:15:05,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:15:05,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:15:05,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:15:05,691 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:15:05,694 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:15:05,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:15:05,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:15:05,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:15:05,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:15:05,696 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:15:05,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:15:05,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:15:05,697 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:15:05,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:15:05,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:15:05,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:15:05,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:15:05,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:15:05,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:15:05,698 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:15:05,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:15:05,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:15:05,699 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:15:05,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:15:05,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:15:05,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:15:05,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:15:05,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:15:05,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:15:05,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:15:05,702 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:15:05,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:15:05,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:15:05,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:15:05,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:15:05,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:15:05,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:15:05,988 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:15:05,989 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:15:05,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/singleton_with-uninit-problems.yml/witness.yml [2024-01-30 14:15:06,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:15:06,175 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:15:06,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-01-30 14:15:07,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:15:07,698 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:15:07,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2024-01-30 14:15:07,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26484e30/e812933ad2af4e608a42b9e7b7dc539d/FLAGb445bc56e [2024-01-30 14:15:07,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26484e30/e812933ad2af4e608a42b9e7b7dc539d [2024-01-30 14:15:07,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:15:07,724 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:15:07,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:15:07,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:15:07,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:15:07,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:06" (1/2) ... [2024-01-30 14:15:07,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e69725 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:07, skipping insertion in model container [2024-01-30 14:15:07,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:06" (1/2) ... [2024-01-30 14:15:07,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f3a9759 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:07, skipping insertion in model container [2024-01-30 14:15:07,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:15:07" (2/2) ... [2024-01-30 14:15:07,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e69725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:07, skipping insertion in model container [2024-01-30 14:15:07,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:15:07" (2/2) ... [2024-01-30 14:15:07,737 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:15:07,790 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:15:07,791 INFO L98 nessWitnessExtractor]: Location invariant before [L1132-L1132] (unsigned long )arg == 0UL [2024-01-30 14:15:07,791 INFO L98 nessWitnessExtractor]: Location invariant before [L1152-L1152] (unsigned long )arg == 0UL [2024-01-30 14:15:07,791 INFO L98 nessWitnessExtractor]: Location invariant before [L1157-L1157] (unsigned long )arg == 0UL [2024-01-30 14:15:07,791 INFO L98 nessWitnessExtractor]: Location invariant before [L1133-L1133] (unsigned long )arg == 0UL [2024-01-30 14:15:07,791 INFO L98 nessWitnessExtractor]: Location invariant before [L1149-L1149] (unsigned long )arg == 0UL [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1153-L1153] (unsigned long )arg == 0UL [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1162-L1162] v == 0 [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1128-L1128] (unsigned long )arg == 0UL [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1155-L1155] (unsigned long )arg == 0UL [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1123-L1123] ((((expression == 1) && (expression == 0)) && (0 <= expression)) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1154-L1154] (unsigned long )arg == 0UL [2024-01-30 14:15:07,792 INFO L98 nessWitnessExtractor]: Location invariant before [L1150-L1150] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1127-L1127] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1151-L1151] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1142-L1142] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1148-L1148] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1147-L1147] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1141-L1141] (unsigned long )arg == 0UL [2024-01-30 14:15:07,793 INFO L98 nessWitnessExtractor]: Location invariant before [L1156-L1156] (unsigned long )arg == 0UL [2024-01-30 14:15:07,794 INFO L98 nessWitnessExtractor]: Location invariant before [L1139-L1139] (unsigned long )arg == 0UL [2024-01-30 14:15:07,794 INFO L98 nessWitnessExtractor]: Location invariant before [L1135-L1135] (unsigned long )arg == 0UL [2024-01-30 14:15:07,794 INFO L98 nessWitnessExtractor]: Location invariant before [L1140-L1140] (unsigned long )arg == 0UL [2024-01-30 14:15:07,795 INFO L98 nessWitnessExtractor]: Location invariant before [L1134-L1134] (unsigned long )arg == 0UL [2024-01-30 14:15:07,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:15:08,246 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-01-30 14:15:08,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:15:08,278 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:15:08,311 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2024-01-30 14:15:08,312 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 [2024-01-30 14:15:08,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:15:08,418 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:15:08,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08 WrapperNode [2024-01-30 14:15:08,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:15:08,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:15:08,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:15:08,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:15:08,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,470 INFO L138 Inliner]: procedures = 324, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2024-01-30 14:15:08,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:15:08,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:15:08,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:15:08,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:15:08,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,516 INFO L175 MemorySlicer]: Split 18 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 4, 2]. 22 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 1, 1, 1, 1, 2, 1]. [2024-01-30 14:15:08,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:15:08,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:15:08,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:15:08,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:15:08,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (1/1) ... [2024-01-30 14:15:08,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:15:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:15:08,593 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) [2024-01-30 14:15:08,597 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 [2024-01-30 14:15:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:15:08,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:15:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:15:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:15:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-30 14:15:08,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-30 14:15:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-01-30 14:15:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-01-30 14:15:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-01-30 14:15:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:15:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:15:08,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:15:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:15:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:15:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:15:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:15:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:15:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:15:08,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:15:08,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-30 14:15:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-30 14:15:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-01-30 14:15:08,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:15:08,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:15:08,680 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:15:08,907 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:15:08,909 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:15:09,367 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:15:09,368 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:15:09,566 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:15:09,566 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:15:09,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:15:09 BoogieIcfgContainer [2024-01-30 14:15:09,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:15:09,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:15:09,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:15:09,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:15:09,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:06" (1/4) ... [2024-01-30 14:15:09,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c239a9f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:15:09, skipping insertion in model container [2024-01-30 14:15:09,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:15:07" (2/4) ... [2024-01-30 14:15:09,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c239a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:15:09, skipping insertion in model container [2024-01-30 14:15:09,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:08" (3/4) ... [2024-01-30 14:15:09,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c239a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:15:09, skipping insertion in model container [2024-01-30 14:15:09,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:15:09" (4/4) ... [2024-01-30 14:15:09,574 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2024-01-30 14:15:09,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:15:09,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-01-30 14:15:09,589 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:15:09,665 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-01-30 14:15:09,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 146 transitions, 389 flow [2024-01-30 14:15:09,735 INFO L124 PetriNetUnfolderBase]: 6/97 cut-off events. [2024-01-30 14:15:09,735 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-30 14:15:09,738 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. [2024-01-30 14:15:09,738 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 146 transitions, 389 flow [2024-01-30 14:15:09,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 94 transitions, 239 flow [2024-01-30 14:15:09,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:15:09,754 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;@2de017f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:15:09,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-01-30 14:15:09,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:15:09,756 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:15:09,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:15:09,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:09,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:15:09,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:09,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:09,761 INFO L85 PathProgramCache]: Analyzing trace with hash 10604, now seen corresponding path program 1 times [2024-01-30 14:15:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:09,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014630800] [2024-01-30 14:15:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:09,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014630800] [2024-01-30 14:15:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014630800] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:15:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565760949] [2024-01-30 14:15:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:15:09,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:15:10,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:15:10,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 148 [2024-01-30 14:15:10,023 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) [2024-01-30 14:15:10,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:10,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 148 [2024-01-30 14:15:10,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:11,467 INFO L124 PetriNetUnfolderBase]: 7191/10961 cut-off events. [2024-01-30 14:15:11,467 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-01-30 14:15:11,530 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. [2024-01-30 14:15:11,688 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 53 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-30 14:15:11,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 92 transitions, 345 flow [2024-01-30 14:15:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:15:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:15:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-01-30 14:15:11,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-30 14:15:11,709 INFO L175 Difference]: Start difference. First operand has 108 places, 94 transitions, 239 flow. Second operand 3 states and 246 transitions. [2024-01-30 14:15:11,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 92 transitions, 345 flow [2024-01-30 14:15:11,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 311 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-30 14:15:11,744 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 199 flow [2024-01-30 14:15:11,745 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} [2024-01-30 14:15:11,747 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -15 predicate places. [2024-01-30 14:15:11,748 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 199 flow [2024-01-30 14:15:11,753 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) [2024-01-30 14:15:11,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:11,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:15:11,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:15:11,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:11,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash 316368621, now seen corresponding path program 1 times [2024-01-30 14:15:11,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:11,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236768517] [2024-01-30 14:15:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:11,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:11,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:11,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236768517] [2024-01-30 14:15:12,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236768517] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:12,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:12,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:12,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845867529] [2024-01-30 14:15:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:12,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:12,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 148 [2024-01-30 14:15:12,040 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) [2024-01-30 14:15:12,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:12,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 148 [2024-01-30 14:15:12,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:13,020 INFO L124 PetriNetUnfolderBase]: 7191/10295 cut-off events. [2024-01-30 14:15:13,036 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-01-30 14:15:13,052 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. [2024-01-30 14:15:13,140 INFO L140 encePairwiseOnDemand]: 135/148 looper letters, 51 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-30 14:15:13,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 79 transitions, 285 flow [2024-01-30 14:15:13,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:13,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-01-30 14:15:13,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594594594594595 [2024-01-30 14:15:13,161 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 199 flow. Second operand 4 states and 272 transitions. [2024-01-30 14:15:13,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 79 transitions, 285 flow [2024-01-30 14:15:13,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 79 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:13,165 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 177 flow [2024-01-30 14:15:13,165 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} [2024-01-30 14:15:13,167 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -25 predicate places. [2024-01-30 14:15:13,167 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 177 flow [2024-01-30 14:15:13,167 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) [2024-01-30 14:15:13,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:13,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:15:13,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:15:13,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:13,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:13,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1779810864, now seen corresponding path program 1 times [2024-01-30 14:15:13,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:13,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300041500] [2024-01-30 14:15:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:13,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300041500] [2024-01-30 14:15:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300041500] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:13,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:13,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994220045] [2024-01-30 14:15:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:13,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:13,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:13,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:13,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-30 14:15:13,394 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) [2024-01-30 14:15:13,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:13,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-30 14:15:13,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:14,240 INFO L124 PetriNetUnfolderBase]: 7198/10302 cut-off events. [2024-01-30 14:15:14,240 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-01-30 14:15:14,251 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. [2024-01-30 14:15:14,284 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 55 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-01-30 14:15:14,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 295 flow [2024-01-30 14:15:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2024-01-30 14:15:14,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050675675675675 [2024-01-30 14:15:14,286 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 177 flow. Second operand 4 states and 299 transitions. [2024-01-30 14:15:14,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 295 flow [2024-01-30 14:15:14,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:14,288 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 174 flow [2024-01-30 14:15:14,288 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} [2024-01-30 14:15:14,288 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -26 predicate places. [2024-01-30 14:15:14,289 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 174 flow [2024-01-30 14:15:14,289 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) [2024-01-30 14:15:14,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:14,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:15:14,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:15:14,289 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:14,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:14,290 INFO L85 PathProgramCache]: Analyzing trace with hash 535149065, now seen corresponding path program 1 times [2024-01-30 14:15:14,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:14,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393905896] [2024-01-30 14:15:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:14,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:14,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:14,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393905896] [2024-01-30 14:15:14,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393905896] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:14,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:14,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:14,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116074452] [2024-01-30 14:15:14,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:14,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:14,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:14,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:14,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:14,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-30 14:15:14,491 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) [2024-01-30 14:15:14,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:14,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-30 14:15:14,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:15,155 INFO L124 PetriNetUnfolderBase]: 7191/10405 cut-off events. [2024-01-30 14:15:15,156 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-01-30 14:15:15,180 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. [2024-01-30 14:15:15,233 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-30 14:15:15,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 95 transitions, 363 flow [2024-01-30 14:15:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-30 14:15:15,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-30 14:15:15,236 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 174 flow. Second operand 4 states and 317 transitions. [2024-01-30 14:15:15,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 95 transitions, 363 flow [2024-01-30 14:15:15,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 95 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:15,238 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 169 flow [2024-01-30 14:15:15,238 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} [2024-01-30 14:15:15,239 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -28 predicate places. [2024-01-30 14:15:15,239 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 169 flow [2024-01-30 14:15:15,239 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) [2024-01-30 14:15:15,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:15,240 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] [2024-01-30 14:15:15,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:15:15,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:15,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash -806643272, now seen corresponding path program 1 times [2024-01-30 14:15:15,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:15,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934138803] [2024-01-30 14:15:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:15,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:15,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934138803] [2024-01-30 14:15:15,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934138803] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:15,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:15,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:15,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721594954] [2024-01-30 14:15:15,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:15,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:15,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:15,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:15,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:15,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-30 14:15:15,398 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) [2024-01-30 14:15:15,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:15,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-30 14:15:15,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:15,901 INFO L124 PetriNetUnfolderBase]: 5528/8052 cut-off events. [2024-01-30 14:15:15,902 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-01-30 14:15:15,932 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. [2024-01-30 14:15:15,971 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-01-30 14:15:15,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 93 transitions, 361 flow [2024-01-30 14:15:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-30 14:15:15,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-30 14:15:15,974 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 169 flow. Second operand 4 states and 317 transitions. [2024-01-30 14:15:15,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 93 transitions, 361 flow [2024-01-30 14:15:15,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 93 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:15,976 INFO L231 Difference]: Finished difference. Result has 78 places, 70 transitions, 164 flow [2024-01-30 14:15:15,976 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} [2024-01-30 14:15:15,976 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-30 14:15:15,977 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 70 transitions, 164 flow [2024-01-30 14:15:15,977 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) [2024-01-30 14:15:15,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:15,977 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] [2024-01-30 14:15:15,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:15:15,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:15,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:15,978 INFO L85 PathProgramCache]: Analyzing trace with hash -420604501, now seen corresponding path program 1 times [2024-01-30 14:15:15,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:15,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221695673] [2024-01-30 14:15:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:15,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:16,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221695673] [2024-01-30 14:15:16,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221695673] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:16,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:16,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:16,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896688387] [2024-01-30 14:15:16,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:16,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:16,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:16,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:16,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:16,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-30 14:15:16,074 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) [2024-01-30 14:15:16,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:16,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-30 14:15:16,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:16,895 INFO L124 PetriNetUnfolderBase]: 4095/6005 cut-off events. [2024-01-30 14:15:16,895 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-01-30 14:15:16,911 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. [2024-01-30 14:15:16,976 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-30 14:15:16,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 359 flow [2024-01-30 14:15:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-30 14:15:16,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-30 14:15:16,994 INFO L175 Difference]: Start difference. First operand has 78 places, 70 transitions, 164 flow. Second operand 4 states and 317 transitions. [2024-01-30 14:15:16,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 359 flow [2024-01-30 14:15:16,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 91 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:16,996 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 159 flow [2024-01-30 14:15:16,997 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} [2024-01-30 14:15:16,998 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -32 predicate places. [2024-01-30 14:15:16,999 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 159 flow [2024-01-30 14:15:16,999 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) [2024-01-30 14:15:16,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:16,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:15:17,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:15:17,000 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:17,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:17,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1835301158, now seen corresponding path program 1 times [2024-01-30 14:15:17,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:17,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272634618] [2024-01-30 14:15:17,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:17,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:17,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:17,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:17,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272634618] [2024-01-30 14:15:17,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272634618] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:17,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:17,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:17,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553181156] [2024-01-30 14:15:17,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:17,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:17,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:17,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:17,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:17,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 148 [2024-01-30 14:15:17,249 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) [2024-01-30 14:15:17,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:17,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 148 [2024-01-30 14:15:17,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:17,943 INFO L124 PetriNetUnfolderBase]: 3032/4442 cut-off events. [2024-01-30 14:15:17,943 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-01-30 14:15:17,954 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. [2024-01-30 14:15:17,971 INFO L140 encePairwiseOnDemand]: 143/148 looper letters, 72 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2024-01-30 14:15:17,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 357 flow [2024-01-30 14:15:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-01-30 14:15:17,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535472972972973 [2024-01-30 14:15:17,974 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 159 flow. Second operand 4 states and 317 transitions. [2024-01-30 14:15:17,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 357 flow [2024-01-30 14:15:17,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:17,977 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 154 flow [2024-01-30 14:15:17,977 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} [2024-01-30 14:15:17,977 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -34 predicate places. [2024-01-30 14:15:17,978 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 154 flow [2024-01-30 14:15:17,978 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) [2024-01-30 14:15:17,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:17,978 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] [2024-01-30 14:15:17,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:15:17,979 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:17,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1414109003, now seen corresponding path program 1 times [2024-01-30 14:15:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:17,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691006299] [2024-01-30 14:15:17,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:17,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:18,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:18,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691006299] [2024-01-30 14:15:18,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691006299] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:18,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:18,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:15:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710827460] [2024-01-30 14:15:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:18,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:18,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2024-01-30 14:15:18,353 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) [2024-01-30 14:15:18,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:18,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2024-01-30 14:15:18,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:18,727 INFO L124 PetriNetUnfolderBase]: 3743/5425 cut-off events. [2024-01-30 14:15:18,727 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-01-30 14:15:18,738 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. [2024-01-30 14:15:18,746 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 66 selfloop transitions, 4 changer transitions 13/98 dead transitions. [2024-01-30 14:15:18,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 402 flow [2024-01-30 14:15:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2024-01-30 14:15:18,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-30 14:15:18,748 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 154 flow. Second operand 4 states and 328 transitions. [2024-01-30 14:15:18,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 402 flow [2024-01-30 14:15:18,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 98 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:18,751 INFO L231 Difference]: Finished difference. Result has 78 places, 67 transitions, 183 flow [2024-01-30 14:15:18,751 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} [2024-01-30 14:15:18,752 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -30 predicate places. [2024-01-30 14:15:18,752 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 67 transitions, 183 flow [2024-01-30 14:15:18,752 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) [2024-01-30 14:15:18,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:18,753 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] [2024-01-30 14:15:18,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:15:18,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 60 more)] === [2024-01-30 14:15:18,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1554086819, now seen corresponding path program 2 times [2024-01-30 14:15:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820153228] [2024-01-30 14:15:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:19,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:19,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820153228] [2024-01-30 14:15:19,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820153228] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:19,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:19,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:15:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920719980] [2024-01-30 14:15:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:19,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:19,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:19,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 148 [2024-01-30 14:15:19,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 67 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:15:19,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:19,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 148 [2024-01-30 14:15:19,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:19,360 INFO L124 PetriNetUnfolderBase]: 3197/4622 cut-off events. [2024-01-30 14:15:19,361 INFO L125 PetriNetUnfolderBase]: For 1916/1916 co-relation queries the response was YES. [2024-01-30 14:15:19,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11029 conditions, 4622 events. 3197/4622 cut-off events. For 1916/1916 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 22694 event pairs, 1269 based on Foata normal form. 1/4427 useless extension candidates. Maximal degree in co-relation 11024. Up to 2693 conditions per place. [2024-01-30 14:15:19,377 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2024-01-30 14:15:19,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 94 transitions, 418 flow [2024-01-30 14:15:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2024-01-30 14:15:19,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.543918918918919 [2024-01-30 14:15:19,379 INFO L175 Difference]: Start difference. First operand has 78 places, 67 transitions, 183 flow. Second operand 4 states and 322 transitions. [2024-01-30 14:15:19,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 94 transitions, 418 flow [2024-01-30 14:15:19,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 94 transitions, 404 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:19,383 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-01-30 14:15:19,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-01-30 14:15:19,384 INFO L281 CegarLoopForPetriNet]: 108 programPoint places, -32 predicate places. [2024-01-30 14:15:19,384 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-01-30 14:15:19,384 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) [2024-01-30 14:15:19,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 63 remaining) [2024-01-30 14:15:19,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 63 remaining) [2024-01-30 14:15:19,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 63 remaining) [2024-01-30 14:15:19,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 63 remaining) [2024-01-30 14:15:19,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 63 remaining) [2024-01-30 14:15:19,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 63 remaining) [2024-01-30 14:15:19,391 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 63 remaining) [2024-01-30 14:15:19,392 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 63 remaining) [2024-01-30 14:15:19,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 63 remaining) [2024-01-30 14:15:19,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 63 remaining) [2024-01-30 14:15:19,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 63 remaining) [2024-01-30 14:15:19,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 63 remaining) [2024-01-30 14:15:19,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 63 remaining) [2024-01-30 14:15:19,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 63 remaining) [2024-01-30 14:15:19,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 63 remaining) [2024-01-30 14:15:19,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 63 remaining) [2024-01-30 14:15:19,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (35 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 63 remaining) [2024-01-30 14:15:19,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 63 remaining) [2024-01-30 14:15:19,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 63 remaining) [2024-01-30 14:15:19,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 63 remaining) [2024-01-30 14:15:19,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 63 remaining) [2024-01-30 14:15:19,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 63 remaining) [2024-01-30 14:15:19,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 63 remaining) [2024-01-30 14:15:19,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 63 remaining) [2024-01-30 14:15:19,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:15:19,404 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:15:19,409 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:15:19,409 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:15:19,412 INFO L503 ceAbstractionStarter]: Automizer considered 22 witness invariants [2024-01-30 14:15:19,412 INFO L504 ceAbstractionStarter]: WitnessConsidered=22 [2024-01-30 14:15:19,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:15:19 BasicIcfg [2024-01-30 14:15:19,414 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:15:19,414 INFO L158 Benchmark]: Toolchain (without parser) took 11690.13ms. Allocated memory was 182.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 152.8MB in the beginning and 807.6MB in the end (delta: -654.8MB). Peak memory consumption was 869.1MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,415 INFO L158 Benchmark]: Witness Parser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 79.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:15:19,416 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:15:19,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.70ms. Allocated memory is still 182.5MB. Free memory was 151.7MB in the beginning and 114.2MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 182.5MB. Free memory was 114.2MB in the beginning and 112.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,417 INFO L158 Benchmark]: Boogie Preprocessor took 67.53ms. Allocated memory is still 182.5MB. Free memory was 112.2MB in the beginning and 109.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,417 INFO L158 Benchmark]: RCFGBuilder took 1027.51ms. Allocated memory is still 182.5MB. Free memory was 109.1MB in the beginning and 72.4MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,417 INFO L158 Benchmark]: TraceAbstraction took 9845.52ms. Allocated memory was 182.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 72.4MB in the beginning and 807.6MB in the end (delta: -735.2MB). Peak memory consumption was 789.5MB. Max. memory is 16.1GB. [2024-01-30 14:15:19,418 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 0.29ms. Allocated memory is still 127.9MB. Free memory was 79.6MB in the beginning and 79.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.70ms. Allocated memory is still 182.5MB. Free memory was 151.7MB in the beginning and 114.2MB in the end (delta: 37.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 182.5MB. Free memory was 114.2MB in the beginning and 112.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.53ms. Allocated memory is still 182.5MB. Free memory was 112.2MB in the beginning and 109.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1027.51ms. Allocated memory is still 182.5MB. Free memory was 109.1MB in the beginning and 72.4MB in the end (delta: 36.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9845.52ms. Allocated memory was 182.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 72.4MB in the beginning and 807.6MB in the end (delta: -735.2MB). Peak memory consumption was 789.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1148]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1149]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1150]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1151]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1152]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1153]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1154]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1155]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1156]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1157]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1127]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1128]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1132]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1133]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1134]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1135]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1139]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1140]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1141]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1142]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1162]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1123]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 177 locations, 63 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 574 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 549 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1176 IncrementalHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 2 mSDtfsCounter, 1176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:15:19,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE