./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c --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/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/weaver/bench-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:07:28,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:07:28,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:07:28,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:07:28,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:07:28,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:07:28,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:07:28,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:07:28,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:07:28,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:07:28,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:07:28,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:07:28,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:07:28,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:07:28,225 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:07:28,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:07:28,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:07:28,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:07:28,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:07:28,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:07:28,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:07:28,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:07:28,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:07:28,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:07:28,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:07:28,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:07:28,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:07:28,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:07:28,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:07:28,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:07:28,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:07:28,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:07:28,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:07:28,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:07:28,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:07:28,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:07:28,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:07:28,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:07:28,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:07:28,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:07:28,233 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:07:28,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:07:28,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:07:28,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:07:28,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:07:28,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:07:28,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:07:28,489 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:07:28,490 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:07:28,491 INFO L431 ainManager$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/bench-exp2x9.wvr.yml/witness.yml [2024-01-31 16:07:28,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:07:28,639 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:07:28,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-31 16:07:29,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:07:30,009 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:07:30,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-31 16:07:30,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d727b020f/4c094597913f43c0bba02581e2144560/FLAG6634bcf36 [2024-01-31 16:07:30,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d727b020f/4c094597913f43c0bba02581e2144560 [2024-01-31 16:07:30,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:07:30,032 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:07:30,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:07:30,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:07:30,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:07:30,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:07:28" (1/2) ... [2024-01-31 16:07:30,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa6c59b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:07:30, skipping insertion in model container [2024-01-31 16:07:30,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:07:28" (1/2) ... [2024-01-31 16:07:30,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3af24d8c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:07:30, skipping insertion in model container [2024-01-31 16:07:30,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:07:30" (2/2) ... [2024-01-31 16:07:30,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa6c59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30, skipping insertion in model container [2024-01-31 16:07:30,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:07:30" (2/2) ... [2024-01-31 16:07:30,045 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:07:30,080 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:07:30,082 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,082 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,082 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,082 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L80] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,082 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] ((x3 == 0U) && (x4 == 0U)) && (n == 0U) [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((((((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x1 == 0U)) && (x2 == 0U)) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L52] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,083 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L38] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (x4 == 0U) && (n == 0U) [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,084 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,085 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,085 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,085 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,085 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,086 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L66] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,087 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,088 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-01-31 16:07:30,088 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,088 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,090 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,090 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,090 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-31 16:07:30,119 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:07:30,284 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-31 16:07:30,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:07:30,300 INFO L204 MainTranslator]: Completed pre-run 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:07:30,430 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-31 16:07:30,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:07:30,447 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:07:30,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30 WrapperNode [2024-01-31 16:07:30,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:07:30,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:07:30,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:07:30,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:07:30,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,515 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-01-31 16:07:30,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:07:30,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:07:30,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:07:30,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:07:30,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,568 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-31 16:07:30,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:07:30,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:07:30,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:07:30,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:07:30,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (1/1) ... [2024-01-31 16:07:30,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:07:30,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:07:30,648 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 16:07:30,650 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 16:07:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:07:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 16:07:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 16:07:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 16:07:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 16:07:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 16:07:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 16:07:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-31 16:07:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-31 16:07:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:07:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:07:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:07:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:07:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:07:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 16:07:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:07:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 16:07:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:07:30,705 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 16:07:30,829 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:07:30,831 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:07:31,172 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:07:31,172 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:07:31,298 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:07:31,298 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-31 16:07:31,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:07:31 BoogieIcfgContainer [2024-01-31 16:07:31,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:07:31,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:07:31,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:07:31,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:07:31,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:07:28" (1/4) ... [2024-01-31 16:07:31,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e76b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:07:31, skipping insertion in model container [2024-01-31 16:07:31,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:07:30" (2/4) ... [2024-01-31 16:07:31,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e76b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:07:31, skipping insertion in model container [2024-01-31 16:07:31,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:07:30" (3/4) ... [2024-01-31 16:07:31,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e76b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:07:31, skipping insertion in model container [2024-01-31 16:07:31,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:07:31" (4/4) ... [2024-01-31 16:07:31,311 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-31 16:07:31,329 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:07:31,330 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-01-31 16:07:31,330 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:07:31,424 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-31 16:07:31,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 270 flow [2024-01-31 16:07:31,576 INFO L124 PetriNetUnfolderBase]: 8/117 cut-off events. [2024-01-31 16:07:31,577 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-31 16:07:31,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 117 events. 8/117 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 425 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2024-01-31 16:07:31,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 121 transitions, 270 flow [2024-01-31 16:07:31,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 116 transitions, 256 flow [2024-01-31 16:07:31,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:07:31,639 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;@20df1e94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:07:31,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-31 16:07:31,643 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:07:31,643 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:07:31,643 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:07:31,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:07:31,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:07:31,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-31 16:07:31,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:07:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash 14818, now seen corresponding path program 1 times [2024-01-31 16:07:31,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:07:31,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123571406] [2024-01-31 16:07:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:07:31,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:07:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:07:32,108 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 16:07:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:07:32,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123571406] [2024-01-31 16:07:32,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123571406] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:07:32,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:07:32,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:07:32,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772584876] [2024-01-31 16:07:32,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:07:32,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:07:32,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:07:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:07:32,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:07:32,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 121 [2024-01-31 16:07:32,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 116 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 16:07:32,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:07:32,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 121 [2024-01-31 16:07:32,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:07:45,203 INFO L124 PetriNetUnfolderBase]: 91706/154429 cut-off events. [2024-01-31 16:07:45,203 INFO L125 PetriNetUnfolderBase]: For 4178/4178 co-relation queries the response was YES. [2024-01-31 16:07:45,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273838 conditions, 154429 events. 91706/154429 cut-off events. For 4178/4178 co-relation queries the response was YES. Maximal size of possible extension queue 6018. Compared 1552828 event pairs, 73226 based on Foata normal form. 18313/166158 useless extension candidates. Maximal degree in co-relation 251798. Up to 116070 conditions per place. [2024-01-31 16:07:46,662 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 60 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-01-31 16:07:46,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 111 transitions, 370 flow [2024-01-31 16:07:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:07:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:07:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-31 16:07:46,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6225895316804407 [2024-01-31 16:07:46,675 INFO L175 Difference]: Start difference. First operand has 121 places, 116 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-01-31 16:07:46,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 111 transitions, 370 flow [2024-01-31 16:07:46,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 354 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-31 16:07:46,725 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 234 flow [2024-01-31 16:07:46,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2024-01-31 16:07:46,731 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -7 predicate places. [2024-01-31 16:07:46,731 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 234 flow [2024-01-31 16:07:46,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 16:07:46,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:07:46,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-31 16:07:46,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:07:46,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-31 16:07:46,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:07:46,733 INFO L85 PathProgramCache]: Analyzing trace with hash 459861, now seen corresponding path program 1 times [2024-01-31 16:07:46,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:07:46,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492119520] [2024-01-31 16:07:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:07:46,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:07:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:07:46,837 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 16:07:46,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:07:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492119520] [2024-01-31 16:07:46,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492119520] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:07:46,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:07:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:07:46,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700514034] [2024-01-31 16:07:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:07:46,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:07:46,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:07:46,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:07:46,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:07:46,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 121 [2024-01-31 16:07:46,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 16:07:46,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:07:46,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 121 [2024-01-31 16:07:46,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:07:56,466 INFO L124 PetriNetUnfolderBase]: 91706/154428 cut-off events. [2024-01-31 16:07:56,466 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2024-01-31 16:07:56,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271613 conditions, 154428 events. 91706/154428 cut-off events. For 1007/1007 co-relation queries the response was YES. Maximal size of possible extension queue 6018. Compared 1552621 event pairs, 73226 based on Foata normal form. 0/147845 useless extension candidates. Maximal degree in co-relation 271604. Up to 116068 conditions per place. [2024-01-31 16:07:57,521 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 59 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-01-31 16:07:57,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 110 transitions, 354 flow [2024-01-31 16:07:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:07:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:07:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-01-31 16:07:57,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6170798898071626 [2024-01-31 16:07:57,524 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 234 flow. Second operand 3 states and 224 transitions. [2024-01-31 16:07:57,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 110 transitions, 354 flow [2024-01-31 16:07:57,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:07:57,527 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 232 flow [2024-01-31 16:07:57,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=113, PETRI_TRANSITIONS=110} [2024-01-31 16:07:57,528 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -8 predicate places. [2024-01-31 16:07:57,528 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 232 flow [2024-01-31 16:07:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 16:07:57,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:07:57,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-31 16:07:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:07:57,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-31 16:07:57,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:07:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 14256199, now seen corresponding path program 1 times [2024-01-31 16:07:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:07:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197239108] [2024-01-31 16:07:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:07:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:07:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:07:57,596 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 16:07:57,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:07:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197239108] [2024-01-31 16:07:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197239108] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:07:57,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:07:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:07:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158448182] [2024-01-31 16:07:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:07:57,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:07:57,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:07:57,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:07:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:07:57,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 121 [2024-01-31 16:07:57,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 16:07:57,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:07:57,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 121 [2024-01-31 16:07:57,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:08:06,217 INFO L124 PetriNetUnfolderBase]: 91706/154427 cut-off events. [2024-01-31 16:08:06,217 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2024-01-31 16:08:06,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271611 conditions, 154427 events. 91706/154427 cut-off events. For 1007/1007 co-relation queries the response was YES. Maximal size of possible extension queue 6018. Compared 1552638 event pairs, 73226 based on Foata normal form. 0/147845 useless extension candidates. Maximal degree in co-relation 271600. Up to 116066 conditions per place. [2024-01-31 16:08:07,146 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-31 16:08:07,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 350 flow [2024-01-31 16:08:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:08:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:08:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-31 16:08:07,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6225895316804407 [2024-01-31 16:08:07,150 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 232 flow. Second operand 3 states and 226 transitions. [2024-01-31 16:08:07,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 350 flow [2024-01-31 16:08:07,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:08:07,153 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 230 flow [2024-01-31 16:08:07,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2024-01-31 16:08:07,154 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -9 predicate places. [2024-01-31 16:08:07,154 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 230 flow [2024-01-31 16:08:07,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 16:08:07,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:08:07,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:08:07,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:08:07,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-31 16:08:07,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:08:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash 441942647, now seen corresponding path program 1 times [2024-01-31 16:08:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:08:07,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796329390] [2024-01-31 16:08:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:08:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:08:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:08:07,188 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 16:08:07,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:08:07,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796329390] [2024-01-31 16:08:07,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796329390] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:08:07,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:08:07,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:08:07,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321435090] [2024-01-31 16:08:07,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:08:07,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:08:07,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:08:07,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:08:07,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:08:07,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 121 [2024-01-31 16:08:07,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 16:08:07,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:08:07,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 121 [2024-01-31 16:08:07,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand