./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.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/43_NetBSD_sysmon_power_sliced.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/43_NetBSD_sysmon_power_sliced.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-?-80b1b13-m [2024-01-31 16:43:18,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:43:18,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:43:18,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:43:18,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:43:18,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:43:18,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:43:18,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:43:18,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:43:18,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:43:18,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:43:18,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:43:18,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:43:18,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:43:18,635 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:43:18,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:43:18,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:43:18,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:43:18,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:43:18,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:43:18,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:43:18,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:43:18,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:43:18,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:43:18,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:43:18,638 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:43:18,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:43:18,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:43:18,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:43:18,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:43:18,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:43:18,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:43:18,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:43:18,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:43:18,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:43:18,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:43:18,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:43:18,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:43:18,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:43:18,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:43:18,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:43:18,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:43:18,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:43:18,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:43:18,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:43:18,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:43:18,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:43:18,914 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:43:18,914 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:43:18,915 INFO L431 ainManager$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/43_NetBSD_sysmon_power_sliced.yml/witness.yml [2024-01-31 16:43:18,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:43:18,997 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:43:18,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-01-31 16:43:20,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:43:20,328 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:43:20,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-01-31 16:43:20,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe6da482c/3a390495099549ea97997ea52af0d494/FLAG8692fa56f [2024-01-31 16:43:20,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe6da482c/3a390495099549ea97997ea52af0d494 [2024-01-31 16:43:20,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:43:20,355 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:43:20,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:43:20,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:43:20,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:43:20,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:18" (1/2) ... [2024-01-31 16:43:20,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577462f1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:43:20, skipping insertion in model container [2024-01-31 16:43:20,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:18" (1/2) ... [2024-01-31 16:43:20,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62857a2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:43:20, skipping insertion in model container [2024-01-31 16:43:20,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:43:20" (2/2) ... [2024-01-31 16:43:20,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577462f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20, skipping insertion in model container [2024-01-31 16:43:20,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:43:20" (2/2) ... [2024-01-31 16:43:20,366 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:43:20,411 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:43:20,412 INFO L98 nessWitnessExtractor]: Location invariant after [L809-L809] (unsigned long )arg == 0UL [2024-01-31 16:43:20,413 INFO L98 nessWitnessExtractor]: Location invariant after [L808-L808] (unsigned long )arg == 0UL [2024-01-31 16:43:20,413 INFO L98 nessWitnessExtractor]: Location invariant after [L812-L812] (unsigned long )arg == 0UL [2024-01-31 16:43:20,413 INFO L98 nessWitnessExtractor]: Location invariant after [L805-L805] (unsigned long )arg == 0UL [2024-01-31 16:43:20,413 INFO L98 nessWitnessExtractor]: Location invariant after [L813-L813] (unsigned long )arg == 0UL [2024-01-31 16:43:20,414 INFO L98 nessWitnessExtractor]: Location invariant after [L810-L810] (unsigned long )arg == 0UL [2024-01-31 16:43:20,414 INFO L98 nessWitnessExtractor]: Location invariant after [L811-L811] (unsigned long )arg == 0UL [2024-01-31 16:43:20,414 INFO L98 nessWitnessExtractor]: Location invariant after [L806-L806] (unsigned long )arg == 0UL [2024-01-31 16:43:20,414 INFO L98 nessWitnessExtractor]: Location invariant after [L807-L807] (unsigned long )arg == 0UL [2024-01-31 16:43:20,454 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:43:20,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[30297,30310] [2024-01-31 16:43:20,678 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[30487,30500] [2024-01-31 16:43:20,685 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31293,31306] [2024-01-31 16:43:20,690 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31584,31597] [2024-01-31 16:43:20,693 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31812,31825] [2024-01-31 16:43:20,696 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32286,32299] [2024-01-31 16:43:20,698 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32509,32522] [2024-01-31 16:43:20,700 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32707,32720] [2024-01-31 16:43:20,701 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32902,32915] [2024-01-31 16:43:20,704 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[33095,33108] [2024-01-31 16:43:20,707 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[33516,33529] [2024-01-31 16:43:20,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:43:20,726 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:43:20,750 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[30297,30310] [2024-01-31 16:43:20,751 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[30487,30500] [2024-01-31 16:43:20,753 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31293,31306] [2024-01-31 16:43:20,754 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31584,31597] [2024-01-31 16:43:20,754 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[31812,31825] [2024-01-31 16:43:20,756 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32286,32299] [2024-01-31 16:43:20,760 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32509,32522] [2024-01-31 16:43:20,761 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32707,32720] [2024-01-31 16:43:20,762 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[32902,32915] [2024-01-31 16:43:20,762 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[33095,33108] [2024-01-31 16:43:20,763 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/43_NetBSD_sysmon_power_sliced.i[33516,33529] 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 [2024-01-31 16:43:20,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:43:20,854 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:43:20,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20 WrapperNode [2024-01-31 16:43:20,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:43:20,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:43:20,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:43:20,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:43:20,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,935 INFO L138 Inliner]: procedures = 181, calls = 51, calls flagged for inlining = 43, calls inlined = 68, statements flattened = 470 [2024-01-31 16:43:20,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:43:20,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:43:20,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:43:20,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:43:20,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,979 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-01-31 16:43:20,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:20,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:21,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:21,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:21,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:21,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:43:21,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:43:21,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:43:21,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:43:21,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (1/1) ... [2024-01-31 16:43:21,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:43:21,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:43:21,097 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) [2024-01-31 16:43:21,133 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 [2024-01-31 16:43:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-31 16:43:21,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:43:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:43:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:43:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:43:21,162 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:43:21,258 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:43:21,259 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:43:21,735 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:43:21,735 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:43:21,940 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:43:21,940 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-31 16:43:21,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:43:21 BoogieIcfgContainer [2024-01-31 16:43:21,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:43:21,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:43:21,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:43:21,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:43:21,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:43:18" (1/4) ... [2024-01-31 16:43:21,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff314ac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:43:21, skipping insertion in model container [2024-01-31 16:43:21,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:43:20" (2/4) ... [2024-01-31 16:43:21,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff314ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:43:21, skipping insertion in model container [2024-01-31 16:43:21,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:43:20" (3/4) ... [2024-01-31 16:43:21,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff314ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:43:21, skipping insertion in model container [2024-01-31 16:43:21,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:43:21" (4/4) ... [2024-01-31 16:43:21,950 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced.i [2024-01-31 16:43:21,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:43:21,964 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-01-31 16:43:21,965 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:43:22,067 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:43:22,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 195 transitions, 394 flow [2024-01-31 16:43:22,149 INFO L124 PetriNetUnfolderBase]: 53/197 cut-off events. [2024-01-31 16:43:22,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:22,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 197 events. 53/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 636 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 192. Up to 10 conditions per place. [2024-01-31 16:43:22,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 195 transitions, 394 flow [2024-01-31 16:43:22,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 195 transitions, 394 flow [2024-01-31 16:43:22,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:43:22,171 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;@11ae64c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:43:22,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-01-31 16:43:22,173 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:43:22,173 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-01-31 16:43:22,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:43:22,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:22,174 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-01-31 16:43:22,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 38 more)] === [2024-01-31 16:43:22,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1334334841, now seen corresponding path program 1 times [2024-01-31 16:43:22,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:22,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900191098] [2024-01-31 16:43:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:22,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:43:22,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:43:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:43:22,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:43:22,313 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:43:22,314 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-01-31 16:43:22,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 41 remaining) [2024-01-31 16:43:22,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 41 remaining) [2024-01-31 16:43:22,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 41 remaining) [2024-01-31 16:43:22,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (36 of 41 remaining) [2024-01-31 16:43:22,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 41 remaining) [2024-01-31 16:43:22,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (34 of 41 remaining) [2024-01-31 16:43:22,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (33 of 41 remaining) [2024-01-31 16:43:22,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 41 remaining) [2024-01-31 16:43:22,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 41 remaining) [2024-01-31 16:43:22,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (30 of 41 remaining) [2024-01-31 16:43:22,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (29 of 41 remaining) [2024-01-31 16:43:22,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 41 remaining) [2024-01-31 16:43:22,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONERROR_FUNCTION (27 of 41 remaining) [2024-01-31 16:43:22,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 41 remaining) [2024-01-31 16:43:22,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONERROR_FUNCTION (25 of 41 remaining) [2024-01-31 16:43:22,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 41 remaining) [2024-01-31 16:43:22,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (23 of 41 remaining) [2024-01-31 16:43:22,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 41 remaining) [2024-01-31 16:43:22,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONERROR_FUNCTION (21 of 41 remaining) [2024-01-31 16:43:22,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (20 of 41 remaining) [2024-01-31 16:43:22,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 41 remaining) [2024-01-31 16:43:22,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 41 remaining) [2024-01-31 16:43:22,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 41 remaining) [2024-01-31 16:43:22,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (16 of 41 remaining) [2024-01-31 16:43:22,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (14 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (13 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (10 of 41 remaining) [2024-01-31 16:43:22,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (9 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONERROR_FUNCTION (7 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (6 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONERROR_FUNCTION (5 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (3 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONERROR_FUNCTION (1 of 41 remaining) [2024-01-31 16:43:22,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (0 of 41 remaining) [2024-01-31 16:43:22,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:43:22,326 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-01-31 16:43:22,349 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-31 16:43:22,349 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-31 16:43:22,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:43:22,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 386 transitions, 782 flow [2024-01-31 16:43:22,508 INFO L124 PetriNetUnfolderBase]: 106/390 cut-off events. [2024-01-31 16:43:22,509 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:43:22,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 390 events. 106/390 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1846 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 382. Up to 10 conditions per place. [2024-01-31 16:43:22,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 386 transitions, 782 flow [2024-01-31 16:43:22,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 386 transitions, 782 flow [2024-01-31 16:43:22,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:43:22,536 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;@11ae64c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:43:22,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-01-31 16:43:22,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:43:22,542 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-01-31 16:43:22,542 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:43:22,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:22,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:43:22,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-31 16:43:22,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:22,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1250017600, now seen corresponding path program 1 times [2024-01-31 16:43:22,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206409990] [2024-01-31 16:43:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:43:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:22,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206409990] [2024-01-31 16:43:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206409990] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:22,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:43:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722012733] [2024-01-31 16:43:22,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:22,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:43:22,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:22,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:43:22,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:43:22,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 386 [2024-01-31 16:43:22,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 386 transitions, 782 flow. Second operand has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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) [2024-01-31 16:43:22,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:22,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 386 [2024-01-31 16:43:22,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:43:25,847 INFO L124 PetriNetUnfolderBase]: 19756/37661 cut-off events. [2024-01-31 16:43:25,847 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-01-31 16:43:25,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64639 conditions, 37661 events. 19756/37661 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 349462 event pairs, 264 based on Foata normal form. 6068/38434 useless extension candidates. Maximal degree in co-relation 63677. Up to 26539 conditions per place. [2024-01-31 16:43:26,104 INFO L140 encePairwiseOnDemand]: 326/386 looper letters, 240 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2024-01-31 16:43:26,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 409 transitions, 1317 flow [2024-01-31 16:43:26,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:43:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:43:26,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 994 transitions. [2024-01-31 16:43:26,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6437823834196891 [2024-01-31 16:43:26,119 INFO L175 Difference]: Start difference. First operand has 285 places, 386 transitions, 782 flow. Second operand 4 states and 994 transitions. [2024-01-31 16:43:26,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 409 transitions, 1317 flow [2024-01-31 16:43:26,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 409 transitions, 1317 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:43:26,130 INFO L231 Difference]: Finished difference. Result has 276 places, 328 transitions, 670 flow [2024-01-31 16:43:26,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=670, PETRI_PLACES=276, PETRI_TRANSITIONS=328} [2024-01-31 16:43:26,134 INFO L281 CegarLoopForPetriNet]: 285 programPoint places, -9 predicate places. [2024-01-31 16:43:26,135 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 328 transitions, 670 flow [2024-01-31 16:43:26,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 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) [2024-01-31 16:43:26,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:26,135 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-01-31 16:43:26,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:43:26,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-31 16:43:26,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash 84574039, now seen corresponding path program 1 times [2024-01-31 16:43:26,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:26,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725474503] [2024-01-31 16:43:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:26,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:43:26,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:43:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:43:26,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:43:26,197 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-01-31 16:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-01-31 16:43:26,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-01-31 16:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-01-31 16:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (56 of 61 remaining) [2024-01-31 16:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-01-31 16:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (54 of 61 remaining) [2024-01-31 16:43:26,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (53 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (50 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (49 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-01-31 16:43:26,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONERROR_FUNCTION (47 of 61 remaining) [2024-01-31 16:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (46 of 61 remaining) [2024-01-31 16:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONERROR_FUNCTION (45 of 61 remaining) [2024-01-31 16:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 61 remaining) [2024-01-31 16:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (43 of 61 remaining) [2024-01-31 16:43:26,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONERROR_FUNCTION (41 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (40 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 61 remaining) [2024-01-31 16:43:26,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (36 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (34 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (33 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-01-31 16:43:26,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (30 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (29 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONERROR_FUNCTION (27 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (26 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONERROR_FUNCTION (25 of 61 remaining) [2024-01-31 16:43:26,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (23 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONERROR_FUNCTION (21 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (20 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-01-31 16:43:26,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-01-31 16:43:26,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-01-31 16:43:26,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONERROR_FUNCTION (16 of 61 remaining) [2024-01-31 16:43:26,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-01-31 16:43:26,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONERROR_FUNCTION (14 of 61 remaining) [2024-01-31 16:43:26,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONERROR_FUNCTION (13 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONERROR_FUNCTION (10 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONERROR_FUNCTION (9 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-01-31 16:43:26,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONERROR_FUNCTION (7 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONERROR_FUNCTION (6 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONERROR_FUNCTION (5 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONERROR_FUNCTION (3 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-01-31 16:43:26,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONERROR_FUNCTION (1 of 61 remaining) [2024-01-31 16:43:26,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (0 of 61 remaining) [2024-01-31 16:43:26,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:43:26,208 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-31 16:43:26,209 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-31 16:43:26,209 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-31 16:43:26,304 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:43:26,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 577 transitions, 1172 flow [2024-01-31 16:43:26,585 INFO L124 PetriNetUnfolderBase]: 159/583 cut-off events. [2024-01-31 16:43:26,587 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-31 16:43:26,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 583 events. 159/583 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3221 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 572. Up to 10 conditions per place. [2024-01-31 16:43:26,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 577 transitions, 1172 flow [2024-01-31 16:43:26,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 425 places, 577 transitions, 1172 flow [2024-01-31 16:43:26,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:43:26,620 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;@11ae64c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:43:26,621 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-01-31 16:43:26,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:43:26,623 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-01-31 16:43:26,623 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-31 16:43:26,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:43:26,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:43:26,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 78 more)] === [2024-01-31 16:43:26,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:43:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1145462818, now seen corresponding path program 1 times [2024-01-31 16:43:26,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:43:26,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462148144] [2024-01-31 16:43:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:43:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:43:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:43:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:43:26,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:43:26,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462148144] [2024-01-31 16:43:26,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462148144] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:43:26,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:43:26,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:43:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137373651] [2024-01-31 16:43:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:43:26,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:43:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:43:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:43:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:43:26,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 577 [2024-01-31 16:43:26,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 577 transitions, 1172 flow. Second operand has 4 states, 4 states have (on average 256.5) internal successors, (1026), 4 states have internal predecessors, (1026), 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) [2024-01-31 16:43:26,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:43:26,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 577 [2024-01-31 16:43:26,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand