./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.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/race-1_1-join.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f 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/ldv-races/race-1_1-join.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/race-1_1-join.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-a340643-m [2024-01-27 14:48:17,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:48:17,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:48:17,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:48:17,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:48:17,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:48:17,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:48:17,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:48:17,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:48:17,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:48:17,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:48:17,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:48:17,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:48:17,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:48:17,824 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:48:17,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:48:17,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:48:17,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:48:17,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:48:17,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:48:17,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:48:17,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:48:17,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:48:17,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:48:17,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:48:17,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:48:17,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:48:17,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:48:17,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:48:17,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:48:17,830 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:48:17,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:48:17,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:48:17,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:48:18,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:48:18,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:48:18,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:48:18,051 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:48:18,060 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:48:18,062 INFO L431 ainManager$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/race-1_1-join.yml/witness.yml [2024-01-27 14:48:18,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:48:18,190 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:48:18,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-01-27 14:48:19,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:48:19,628 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:48:19,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2024-01-27 14:48:19,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2db510ee/011ffa5bf67c4228b14b1ec13732f725/FLAGc77e6a539 [2024-01-27 14:48:19,664 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2db510ee/011ffa5bf67c4228b14b1ec13732f725 [2024-01-27 14:48:19,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:48:19,665 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:48:19,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:48:19,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:48:19,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:48:19,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:48:18" (1/2) ... [2024-01-27 14:48:19,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6340529b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:48:19, skipping insertion in model container [2024-01-27 14:48:19,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:48:18" (1/2) ... [2024-01-27 14:48:19,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67cbbbd9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:48:19, skipping insertion in model container [2024-01-27 14:48:19,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:48:19" (2/2) ... [2024-01-27 14:48:19,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6340529b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:19, skipping insertion in model container [2024-01-27 14:48:19,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:48:19" (2/2) ... [2024-01-27 14:48:19,675 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:48:19,755 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:48:19,756 INFO L98 nessWitnessExtractor]: Location invariant after [L1717-L1723] (unsigned long )status == 0UL [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] ((((((((0 <= pdev && 1 <= pdev) && pdev <= 3) && pdev <= 127) && expression == 1) && pdev % 2 == 1) && pdev != 0) && (pdev == 1 || pdev == 3)) || ((0 <= expression && expression <= 1) && (expression == 0 || expression == 1))) || ((((((((0 <= expression && 0 <= pdev) && 1 <= pdev) && expression <= 1) && pdev <= 6) && pdev <= 127) && pdev != 0) && (expression == 0 || expression == 1)) && ((pdev == 1 || pdev == 5) || pdev == 6)) [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 0 [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1693-L1693] expression == 1 [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1698-L1698] (unsigned long )arg == 0UL [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1713-L1713] pdev == 3 [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] pdev <= 127 [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] pdev != 0 [2024-01-27 14:48:19,757 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] (pdev == 1 || pdev == 5) || pdev == 6 [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] (unsigned long )arg == 0UL [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] 0 <= pdev [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] 1 <= pdev [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1701-L1701] pdev <= 6 [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1709-L1709] pdev == 1 [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1715-L1715] pdev == 3 [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1721-L1721] (unsigned long )status == 0UL [2024-01-27 14:48:19,758 INFO L98 nessWitnessExtractor]: Location invariant before [L1712-L1712] pdev == 1 [2024-01-27 14:48:19,759 INFO L98 nessWitnessExtractor]: Location invariant before [L1706-L1706] pdev == 0 [2024-01-27 14:48:19,759 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] 0 <= pdev [2024-01-27 14:48:19,759 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] pdev != 0 [2024-01-27 14:48:19,759 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (unsigned long )arg == 0UL [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] 1 <= pdev [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] pdev <= 127 [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] (pdev == 1 || pdev == 5) || pdev == 6 [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1700-L1700] pdev <= 6 [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1707-L1707] pdev == 1 [2024-01-27 14:48:19,760 INFO L98 nessWitnessExtractor]: Location invariant before [L1702-L1702] (unsigned long )arg == 0UL [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1722-L1722] (unsigned long )status == 0UL [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1714-L1714] pdev == 3 [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1720-L1720] (unsigned long )status == 0UL [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1708-L1711] pdev == 1 [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L22] pdev == 1 [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] pdev <= 127 [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] (pdev == 1 || pdev == 5) || pdev == 6 [2024-01-27 14:48:19,761 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] pdev <= 6 [2024-01-27 14:48:19,762 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] (unsigned long )arg == 0UL [2024-01-27 14:48:19,762 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] pdev != 0 [2024-01-27 14:48:19,762 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] 1 <= pdev [2024-01-27 14:48:19,763 INFO L98 nessWitnessExtractor]: Location invariant before [L1699-L1699] 0 <= pdev [2024-01-27 14:48:19,763 INFO L98 nessWitnessExtractor]: Location invariant before [L1705-L1705] pdev == 0 [2024-01-27 14:48:19,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:48:20,238 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2024-01-27 14:48:20,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:48:20,269 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:48:20,280 WARN L424 MainDispatcher]: Unable to annotate typedef unsigned int __mode_t; with a witness entry [2024-01-27 14:48:20,333 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i[76068,76081] [2024-01-27 14:48:20,338 WARN L424 MainDispatcher]: Unable to annotate void ldv_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 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 [2024-01-27 14:48:20,410 WARN L424 MainDispatcher]: Unable to annotate void module_exit() { void *status; pthread_join(t1, &status); pthread_mutex_destroy(&mutex); pdev = 5; ldv_assert(pdev==5); } with a witness entry [2024-01-27 14:48:20,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:48:20,559 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:48:20,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20 WrapperNode [2024-01-27 14:48:20,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:48:20,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:48:20,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:48:20,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:48:20,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,606 INFO L138 Inliner]: procedures = 481, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 138 [2024-01-27 14:48:20,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:48:20,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:48:20,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:48:20,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:48:20,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,628 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 3, 5, 4]. 36 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 1, 5, 0]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-01-27 14:48:20,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:48:20,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:48:20,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:48:20,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:48:20,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (1/1) ... [2024-01-27 14:48:20,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:48:20,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:48:20,694 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) [2024-01-27 14:48:20,720 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 [2024-01-27 14:48:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-01-27 14:48:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:48:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-01-27 14:48:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:48:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:48:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:48:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:48:20,736 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:48:20,938 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:48:20,940 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:48:21,239 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:48:21,240 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:48:21,323 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:48:21,323 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:48:21,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:48:21 BoogieIcfgContainer [2024-01-27 14:48:21,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:48:21,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:48:21,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:48:21,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:48:21,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:48:18" (1/4) ... [2024-01-27 14:48:21,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73886d31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:48:21, skipping insertion in model container [2024-01-27 14:48:21,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:48:19" (2/4) ... [2024-01-27 14:48:21,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73886d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:48:21, skipping insertion in model container [2024-01-27 14:48:21,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:48:20" (3/4) ... [2024-01-27 14:48:21,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73886d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:48:21, skipping insertion in model container [2024-01-27 14:48:21,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:48:21" (4/4) ... [2024-01-27 14:48:21,333 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2024-01-27 14:48:21,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:48:21,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2024-01-27 14:48:21,346 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:48:21,401 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-27 14:48:21,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 107 transitions, 221 flow [2024-01-27 14:48:21,502 INFO L124 PetriNetUnfolderBase]: 5/110 cut-off events. [2024-01-27 14:48:21,502 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:48:21,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 5/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2024-01-27 14:48:21,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 107 transitions, 221 flow [2024-01-27 14:48:21,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 102 transitions, 210 flow [2024-01-27 14:48:21,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:48:21,528 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;@460f2b09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:48:21,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-01-27 14:48:21,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:48:21,530 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:48:21,530 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:48:21,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:21,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:48:21,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:21,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 12241, now seen corresponding path program 1 times [2024-01-27 14:48:21,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:21,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658329548] [2024-01-27 14:48:21,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:21,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:21,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658329548] [2024-01-27 14:48:21,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658329548] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:21,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:21,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:48:21,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724544320] [2024-01-27 14:48:21,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:21,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:48:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:21,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:48:21,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:48:22,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-01-27 14:48:22,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-01-27 14:48:22,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:22,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-01-27 14:48:22,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:22,113 INFO L124 PetriNetUnfolderBase]: 135/477 cut-off events. [2024-01-27 14:48:22,113 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:48:22,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 477 events. 135/477 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2035 event pairs, 120 based on Foata normal form. 8/395 useless extension candidates. Maximal degree in co-relation 742. Up to 287 conditions per place. [2024-01-27 14:48:22,118 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 51 selfloop transitions, 5 changer transitions 0/102 dead transitions. [2024-01-27 14:48:22,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 322 flow [2024-01-27 14:48:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:48:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:48:22,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2024-01-27 14:48:22,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6386292834890965 [2024-01-27 14:48:22,129 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 210 flow. Second operand 3 states and 205 transitions. [2024-01-27 14:48:22,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 322 flow [2024-01-27 14:48:22,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:48:22,135 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 206 flow [2024-01-27 14:48:22,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-01-27 14:48:22,139 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2024-01-27 14:48:22,139 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 206 flow [2024-01-27 14:48:22,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-01-27 14:48:22,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:22,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:48:22,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:48:22,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:22,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash 11777516, now seen corresponding path program 1 times [2024-01-27 14:48:22,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:22,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255635231] [2024-01-27 14:48:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:22,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:22,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255635231] [2024-01-27 14:48:22,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255635231] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:22,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:22,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:48:22,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587440884] [2024-01-27 14:48:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:22,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:48:22,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:22,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:48:22,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:48:22,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-01-27 14:48:22,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-01-27 14:48:22,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:22,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-01-27 14:48:22,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:22,320 INFO L124 PetriNetUnfolderBase]: 90/367 cut-off events. [2024-01-27 14:48:22,320 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-27 14:48:22,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 367 events. 90/367 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1536 event pairs, 5 based on Foata normal form. 13/326 useless extension candidates. Maximal degree in co-relation 540. Up to 199 conditions per place. [2024-01-27 14:48:22,322 INFO L140 encePairwiseOnDemand]: 94/107 looper letters, 44 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2024-01-27 14:48:22,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 288 flow [2024-01-27 14:48:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:48:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:48:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 204 transitions. [2024-01-27 14:48:22,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6355140186915887 [2024-01-27 14:48:22,324 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 206 flow. Second operand 3 states and 204 transitions. [2024-01-27 14:48:22,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 288 flow [2024-01-27 14:48:22,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:48:22,327 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 182 flow [2024-01-27 14:48:22,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-01-27 14:48:22,327 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -12 predicate places. [2024-01-27 14:48:22,328 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 182 flow [2024-01-27 14:48:22,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-01-27 14:48:22,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:22,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:48:22,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:48:22,328 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:22,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:22,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1566694955, now seen corresponding path program 1 times [2024-01-27 14:48:22,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:22,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315227349] [2024-01-27 14:48:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:22,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:22,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:22,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315227349] [2024-01-27 14:48:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315227349] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:22,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:48:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782851743] [2024-01-27 14:48:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:48:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:22,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:48:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:48:22,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 107 [2024-01-27 14:48:22,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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) [2024-01-27 14:48:22,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:22,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 107 [2024-01-27 14:48:22,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:22,633 INFO L124 PetriNetUnfolderBase]: 90/363 cut-off events. [2024-01-27 14:48:22,634 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 14:48:22,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 363 events. 90/363 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1534 event pairs, 5 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 120. Up to 199 conditions per place. [2024-01-27 14:48:22,636 INFO L140 encePairwiseOnDemand]: 98/107 looper letters, 43 selfloop transitions, 7 changer transitions 0/88 dead transitions. [2024-01-27 14:48:22,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 88 transitions, 284 flow [2024-01-27 14:48:22,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:48:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:48:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 267 transitions. [2024-01-27 14:48:22,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49906542056074765 [2024-01-27 14:48:22,638 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 182 flow. Second operand 5 states and 267 transitions. [2024-01-27 14:48:22,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 88 transitions, 284 flow [2024-01-27 14:48:22,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:48:22,640 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 182 flow [2024-01-27 14:48:22,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2024-01-27 14:48:22,641 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -14 predicate places. [2024-01-27 14:48:22,641 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 182 flow [2024-01-27 14:48:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 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) [2024-01-27 14:48:22,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:22,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:48:22,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:48:22,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:22,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:22,642 INFO L85 PathProgramCache]: Analyzing trace with hash -11145780, now seen corresponding path program 1 times [2024-01-27 14:48:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:22,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013140056] [2024-01-27 14:48:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:22,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:22,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:22,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013140056] [2024-01-27 14:48:22,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013140056] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:22,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:22,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:48:22,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602181959] [2024-01-27 14:48:22,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:22,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:48:22,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:22,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:48:22,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:48:22,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-01-27 14:48:22,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:48:22,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:22,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-01-27 14:48:22,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:22,813 INFO L124 PetriNetUnfolderBase]: 95/370 cut-off events. [2024-01-27 14:48:22,815 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-27 14:48:22,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 370 events. 95/370 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1556 event pairs, 95 based on Foata normal form. 2/319 useless extension candidates. Maximal degree in co-relation 120. Up to 230 conditions per place. [2024-01-27 14:48:22,819 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 38 selfloop transitions, 0 changer transitions 6/80 dead transitions. [2024-01-27 14:48:22,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 80 transitions, 262 flow [2024-01-27 14:48:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:48:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:48:22,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-01-27 14:48:22,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105919003115264 [2024-01-27 14:48:22,824 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 182 flow. Second operand 3 states and 196 transitions. [2024-01-27 14:48:22,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 80 transitions, 262 flow [2024-01-27 14:48:22,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 248 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:48:22,826 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 150 flow [2024-01-27 14:48:22,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-01-27 14:48:22,827 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -19 predicate places. [2024-01-27 14:48:22,828 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 150 flow [2024-01-27 14:48:22,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:48:22,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:22,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:48:22,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:48:22,829 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:22,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2119729168, now seen corresponding path program 1 times [2024-01-27 14:48:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:22,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991720625] [2024-01-27 14:48:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:22,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:22,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991720625] [2024-01-27 14:48:22,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991720625] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:22,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:22,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:48:22,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322320505] [2024-01-27 14:48:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:22,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:48:22,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:48:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:48:22,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 107 [2024-01-27 14:48:22,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:48:22,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:22,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 107 [2024-01-27 14:48:22,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:23,026 INFO L124 PetriNetUnfolderBase]: 35/324 cut-off events. [2024-01-27 14:48:23,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:48:23,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 324 events. 35/324 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1511 event pairs, 0 based on Foata normal form. 24/268 useless extension candidates. Maximal degree in co-relation 421. Up to 82 conditions per place. [2024-01-27 14:48:23,028 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 29 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-01-27 14:48:23,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 212 flow [2024-01-27 14:48:23,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:48:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:48:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2024-01-27 14:48:23,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7009345794392523 [2024-01-27 14:48:23,030 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 150 flow. Second operand 4 states and 300 transitions. [2024-01-27 14:48:23,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 212 flow [2024-01-27 14:48:23,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 74 transitions, 212 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:48:23,034 INFO L231 Difference]: Finished difference. Result has 75 places, 69 transitions, 144 flow [2024-01-27 14:48:23,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=75, PETRI_TRANSITIONS=69} [2024-01-27 14:48:23,036 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -28 predicate places. [2024-01-27 14:48:23,036 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 69 transitions, 144 flow [2024-01-27 14:48:23,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:48:23,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:23,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:48:23,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:48:23,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:23,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:23,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2109743687, now seen corresponding path program 1 times [2024-01-27 14:48:23,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:23,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518537350] [2024-01-27 14:48:23,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:23,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:23,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:23,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518537350] [2024-01-27 14:48:23,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518537350] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:23,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:23,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:48:23,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79134048] [2024-01-27 14:48:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:23,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:48:23,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:48:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:48:23,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-01-27 14:48:23,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 69 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-01-27 14:48:23,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:23,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-01-27 14:48:23,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:23,205 INFO L124 PetriNetUnfolderBase]: 90/320 cut-off events. [2024-01-27 14:48:23,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:48:23,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 320 events. 90/320 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1191 event pairs, 90 based on Foata normal form. 12/295 useless extension candidates. Maximal degree in co-relation 540. Up to 217 conditions per place. [2024-01-27 14:48:23,207 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2024-01-27 14:48:23,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 210 flow [2024-01-27 14:48:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:48:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:48:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-01-27 14:48:23,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5950155763239875 [2024-01-27 14:48:23,209 INFO L175 Difference]: Start difference. First operand has 75 places, 69 transitions, 144 flow. Second operand 3 states and 191 transitions. [2024-01-27 14:48:23,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 210 flow [2024-01-27 14:48:23,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 207 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:48:23,211 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 135 flow [2024-01-27 14:48:23,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2024-01-27 14:48:23,213 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -32 predicate places. [2024-01-27 14:48:23,213 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 135 flow [2024-01-27 14:48:23,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-01-27 14:48:23,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:23,214 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] [2024-01-27 14:48:23,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:48:23,214 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:23,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash -977544388, now seen corresponding path program 1 times [2024-01-27 14:48:23,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:23,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292663992] [2024-01-27 14:48:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:23,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:23,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:23,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292663992] [2024-01-27 14:48:23,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292663992] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:23,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:23,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:48:23,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267600234] [2024-01-27 14:48:23,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:23,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:48:23,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:48:23,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:48:23,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 107 [2024-01-27 14:48:23,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2024-01-27 14:48:23,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:23,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 107 [2024-01-27 14:48:23,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:23,381 INFO L124 PetriNetUnfolderBase]: 30/202 cut-off events. [2024-01-27 14:48:23,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:48:23,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 202 events. 30/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 689 event pairs, 5 based on Foata normal form. 42/224 useless extension candidates. Maximal degree in co-relation 290. Up to 58 conditions per place. [2024-01-27 14:48:23,382 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 28 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-27 14:48:23,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 189 flow [2024-01-27 14:48:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:48:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:48:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-01-27 14:48:23,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6137071651090342 [2024-01-27 14:48:23,383 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 135 flow. Second operand 3 states and 197 transitions. [2024-01-27 14:48:23,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 189 flow [2024-01-27 14:48:23,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 62 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 14:48:23,385 INFO L231 Difference]: Finished difference. Result has 64 places, 57 transitions, 122 flow [2024-01-27 14:48:23,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=64, PETRI_TRANSITIONS=57} [2024-01-27 14:48:23,386 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -39 predicate places. [2024-01-27 14:48:23,386 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 122 flow [2024-01-27 14:48:23,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2024-01-27 14:48:23,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:23,387 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] [2024-01-27 14:48:23,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:48:23,387 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err15ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:23,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:23,387 INFO L85 PathProgramCache]: Analyzing trace with hash -238076126, now seen corresponding path program 1 times [2024-01-27 14:48:23,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:23,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178013830] [2024-01-27 14:48:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:23,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:23,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:23,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178013830] [2024-01-27 14:48:23,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178013830] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:23,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:23,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:48:23,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564472049] [2024-01-27 14:48:23,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:23,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:48:23,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:48:23,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:48:23,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-01-27 14:48:23,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-01-27 14:48:23,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:23,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-01-27 14:48:23,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:23,642 INFO L124 PetriNetUnfolderBase]: 35/195 cut-off events. [2024-01-27 14:48:23,642 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 14:48:23,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 195 events. 35/195 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 611 event pairs, 5 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 301. Up to 47 conditions per place. [2024-01-27 14:48:23,643 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 26 selfloop transitions, 4 changer transitions 6/65 dead transitions. [2024-01-27 14:48:23,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 210 flow [2024-01-27 14:48:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:48:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:48:23,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-01-27 14:48:23,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2024-01-27 14:48:23,646 INFO L175 Difference]: Start difference. First operand has 64 places, 57 transitions, 122 flow. Second operand 4 states and 241 transitions. [2024-01-27 14:48:23,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 210 flow [2024-01-27 14:48:23,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 65 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:48:23,647 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 118 flow [2024-01-27 14:48:23,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2024-01-27 14:48:23,649 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -40 predicate places. [2024-01-27 14:48:23,649 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 118 flow [2024-01-27 14:48:23,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-01-27 14:48:23,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:23,650 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] [2024-01-27 14:48:23,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 14:48:23,650 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:23,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2050911616, now seen corresponding path program 1 times [2024-01-27 14:48:23,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486124695] [2024-01-27 14:48:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:23,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486124695] [2024-01-27 14:48:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486124695] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:23,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:23,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:48:23,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640004521] [2024-01-27 14:48:23,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:23,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 14:48:23,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:23,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 14:48:23,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 14:48:23,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2024-01-27 14:48:23,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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) [2024-01-27 14:48:23,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:23,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2024-01-27 14:48:23,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:23,998 INFO L124 PetriNetUnfolderBase]: 18/88 cut-off events. [2024-01-27 14:48:23,998 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-27 14:48:23,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 88 events. 18/88 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 134 event pairs, 15 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 163. Up to 48 conditions per place. [2024-01-27 14:48:23,999 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 22 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2024-01-27 14:48:23,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 174 flow [2024-01-27 14:48:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:48:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:48:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 382 transitions. [2024-01-27 14:48:24,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7140186915887851 [2024-01-27 14:48:24,001 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 118 flow. Second operand 5 states and 382 transitions. [2024-01-27 14:48:24,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 174 flow [2024-01-27 14:48:24,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:48:24,002 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 116 flow [2024-01-27 14:48:24,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2024-01-27 14:48:24,003 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -42 predicate places. [2024-01-27 14:48:24,003 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 116 flow [2024-01-27 14:48:24,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 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) [2024-01-27 14:48:24,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:24,004 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] [2024-01-27 14:48:24,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 14:48:24,004 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:24,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:24,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1741195433, now seen corresponding path program 1 times [2024-01-27 14:48:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076987174] [2024-01-27 14:48:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:24,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:24,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076987174] [2024-01-27 14:48:24,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076987174] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:24,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:24,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 14:48:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318261419] [2024-01-27 14:48:24,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:24,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 14:48:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 14:48:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-27 14:48:24,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2024-01-27 14:48:24,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2024-01-27 14:48:24,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:24,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2024-01-27 14:48:24,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:24,397 INFO L124 PetriNetUnfolderBase]: 18/87 cut-off events. [2024-01-27 14:48:24,398 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:48:24,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 87 events. 18/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 15 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 156. Up to 48 conditions per place. [2024-01-27 14:48:24,398 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 21 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-01-27 14:48:24,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 172 flow [2024-01-27 14:48:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 14:48:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 14:48:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2024-01-27 14:48:24,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6962616822429907 [2024-01-27 14:48:24,400 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 116 flow. Second operand 6 states and 447 transitions. [2024-01-27 14:48:24,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 172 flow [2024-01-27 14:48:24,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 164 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:48:24,401 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 116 flow [2024-01-27 14:48:24,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-01-27 14:48:24,402 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -42 predicate places. [2024-01-27 14:48:24,402 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 116 flow [2024-01-27 14:48:24,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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) [2024-01-27 14:48:24,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:24,402 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] [2024-01-27 14:48:24,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 14:48:24,403 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:24,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:24,403 INFO L85 PathProgramCache]: Analyzing trace with hash 189880525, now seen corresponding path program 1 times [2024-01-27 14:48:24,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:24,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668779069] [2024-01-27 14:48:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:24,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:24,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:24,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668779069] [2024-01-27 14:48:24,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668779069] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:24,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:24,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 14:48:24,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948821370] [2024-01-27 14:48:24,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:24,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 14:48:24,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:24,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 14:48:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-27 14:48:24,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 107 [2024-01-27 14:48:24,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 116 flow. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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) [2024-01-27 14:48:24,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:24,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 107 [2024-01-27 14:48:24,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:24,796 INFO L124 PetriNetUnfolderBase]: 18/86 cut-off events. [2024-01-27 14:48:24,796 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:48:24,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 86 events. 18/86 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 15 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 156. Up to 48 conditions per place. [2024-01-27 14:48:24,797 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 20 selfloop transitions, 6 changer transitions 0/53 dead transitions. [2024-01-27 14:48:24,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 53 transitions, 172 flow [2024-01-27 14:48:24,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 14:48:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 14:48:24,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 517 transitions. [2024-01-27 14:48:24,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902536715620827 [2024-01-27 14:48:24,799 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 116 flow. Second operand 7 states and 517 transitions. [2024-01-27 14:48:24,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 53 transitions, 172 flow [2024-01-27 14:48:24,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 53 transitions, 162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 14:48:24,800 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 116 flow [2024-01-27 14:48:24,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-01-27 14:48:24,800 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -42 predicate places. [2024-01-27 14:48:24,800 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 116 flow [2024-01-27 14:48:24,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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) [2024-01-27 14:48:24,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:48:24,801 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] [2024-01-27 14:48:24,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-27 14:48:24,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-27 14:48:24,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:48:24,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2086571532, now seen corresponding path program 1 times [2024-01-27 14:48:24,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:48:24,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039724584] [2024-01-27 14:48:24,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:48:24,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:48:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:48:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:48:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:48:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039724584] [2024-01-27 14:48:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039724584] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:48:24,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:48:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 14:48:24,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284248672] [2024-01-27 14:48:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:48:24,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:48:24,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:48:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:48:24,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:48:24,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2024-01-27 14:48:24,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 116 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) [2024-01-27 14:48:24,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:48:24,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2024-01-27 14:48:24,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:48:24,985 INFO L124 PetriNetUnfolderBase]: 18/84 cut-off events. [2024-01-27 14:48:24,985 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-27 14:48:24,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 84 events. 18/84 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 18 based on Foata normal form. 1/72 useless extension candidates. Maximal degree in co-relation 156. Up to 57 conditions per place. [2024-01-27 14:48:24,986 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-01-27 14:48:24,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 160 flow [2024-01-27 14:48:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:48:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:48:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 260 transitions. [2024-01-27 14:48:24,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48598130841121495 [2024-01-27 14:48:24,987 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 116 flow. Second operand 5 states and 260 transitions. [2024-01-27 14:48:24,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 160 flow [2024-01-27 14:48:24,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 148 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-27 14:48:24,988 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2024-01-27 14:48:24,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2024-01-27 14:48:24,988 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -46 predicate places. [2024-01-27 14:48:24,989 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2024-01-27 14:48:24,989 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) [2024-01-27 14:48:24,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 64 remaining) [2024-01-27 14:48:24,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 64 remaining) [2024-01-27 14:48:24,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 64 remaining) [2024-01-27 14:48:24,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 64 remaining) [2024-01-27 14:48:24,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONERROR_FUNCTION (48 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 64 remaining) [2024-01-27 14:48:24,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 64 remaining) [2024-01-27 14:48:24,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (36 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 64 remaining) [2024-01-27 14:48:24,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (31 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 64 remaining) [2024-01-27 14:48:24,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (25 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 64 remaining) [2024-01-27 14:48:24,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 64 remaining) [2024-01-27 14:48:24,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONERROR_FUNCTION (8 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 64 remaining) [2024-01-27 14:48:24,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 64 remaining) [2024-01-27 14:48:25,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 64 remaining) [2024-01-27 14:48:25,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 64 remaining) [2024-01-27 14:48:25,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 64 remaining) [2024-01-27 14:48:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-27 14:48:25,000 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:48:25,004 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:48:25,005 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:48:25,008 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-27 14:48:25,008 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-27 14:48:25,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:48:25 BasicIcfg [2024-01-27 14:48:25,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:48:25,010 INFO L158 Benchmark]: Toolchain (without parser) took 5344.49ms. Allocated memory was 176.2MB in the beginning and 291.5MB in the end (delta: 115.3MB). Free memory was 100.3MB in the beginning and 98.1MB in the end (delta: 2.3MB). Peak memory consumption was 120.7MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,010 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:48:25,010 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory was 149.2MB in the beginning and 149.0MB in the end (delta: 193.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:48:25,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.49ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 120.0MB in the end (delta: -20.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.21ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 116.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,011 INFO L158 Benchmark]: Boogie Preprocessor took 46.01ms. Allocated memory is still 176.2MB. Free memory was 116.4MB in the beginning and 112.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,011 INFO L158 Benchmark]: RCFGBuilder took 670.82ms. Allocated memory is still 176.2MB. Free memory was 112.2MB in the beginning and 76.0MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,011 INFO L158 Benchmark]: TraceAbstraction took 3682.53ms. Allocated memory was 176.2MB in the beginning and 291.5MB in the end (delta: 115.3MB). Free memory was 75.0MB in the beginning and 98.1MB in the end (delta: -23.0MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2024-01-27 14:48:25,012 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory was 149.2MB in the beginning and 149.0MB in the end (delta: 193.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 892.49ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 120.0MB in the end (delta: -20.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.21ms. Allocated memory is still 176.2MB. Free memory was 120.0MB in the beginning and 116.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.01ms. Allocated memory is still 176.2MB. Free memory was 116.4MB in the beginning and 112.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 670.82ms. Allocated memory is still 176.2MB. Free memory was 112.2MB in the beginning and 76.0MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3682.53ms. Allocated memory was 176.2MB in the beginning and 291.5MB in the end (delta: 115.3MB). Free memory was 75.0MB in the beginning and 98.1MB in the end (delta: -23.0MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1706]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1712]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1713]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1714]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1715]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1721]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1722]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1693]: 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 3 procedures, 159 locations, 64 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: 3.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1100 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 594 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1503 IncrementalHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 80 mSDtfsCounter, 1503 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=0, InterpolantAutomatonStates: 51, 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, 1.4s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 14:48:25,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE