./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.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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.2024-01-24_13-31-21.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-dev-d8006e4-m [2024-02-05 10:31:44,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:31:44,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:31:44,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:31:44,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:31:44,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:31:44,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:31:44,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:31:44,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:31:44,209 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:31:44,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:31:44,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:31:44,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:31:44,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:31:44,212 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:31:44,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:31:44,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:31:44,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:31:44,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:31:44,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:31:44,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:31:44,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:31:44,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:31:44,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:31:44,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:31:44,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:31:44,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:31:44,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:31:44,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:31:44,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:31:44,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:31:44,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:31:44,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:31:44,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:31:44,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:31:44,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:31:44,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:31:44,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:31:44,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:31:44,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:31:44,219 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:31:44,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:31:44,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:31:44,220 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:31:44,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:31:44,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:31:44,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:31:44,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:31:44,523 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:31:44,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-02-05 10:31:45,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:31:45,911 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:31:45,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-02-05 10:31:45,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8240c3823/6a9a13790dde451189c9128d48373a1f/FLAG50ffa7a98 [2024-02-05 10:31:45,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8240c3823/6a9a13790dde451189c9128d48373a1f [2024-02-05 10:31:45,938 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:31:45,938 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:31:45,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-02-05 10:31:46,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:31:46,068 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:31:46,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:31:46,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:31:46,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:31:46,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:31:45" (1/2) ... [2024-02-05 10:31:46,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5edc739d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:46, skipping insertion in model container [2024-02-05 10:31:46,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:31:45" (1/2) ... [2024-02-05 10:31:46,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78771800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:46, skipping insertion in model container [2024-02-05 10:31:46,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:46" (2/2) ... [2024-02-05 10:31:46,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5edc739d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46, skipping insertion in model container [2024-02-05 10:31:46,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:46" (2/2) ... [2024-02-05 10:31:46,079 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:31:46,119 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:31:46,121 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (x4 == 0U) && (n == 0U) [2024-02-05 10:31:46,121 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,121 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,121 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,121 INFO L101 nessWitnessExtractor]: Loop invariant at [L38-L38] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,122 INFO L101 nessWitnessExtractor]: Loop invariant at [L66-L66] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,122 INFO L101 nessWitnessExtractor]: Loop invariant at [L52-L52] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,122 INFO L101 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) [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-02-05 10:31:46,123 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L99-L99] ((x3 == 0U) && (x4 == 0U)) && (n == 0U) [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,124 INFO L101 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,125 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,125 INFO L101 nessWitnessExtractor]: Loop invariant at [L80-L80] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,125 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,126 INFO L101 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,127 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,128 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,128 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,129 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,129 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,130 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-02-05 10:31:46,156 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:31:46,311 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-02-05 10:31:46,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:31:46,325 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 [2024-02-05 10:31:46,387 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] [2024-02-05 10:31:46,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:31:46,404 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:31:46,404 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46 WrapperNode [2024-02-05 10:31:46,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:31:46,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:31:46,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:31:46,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:31:46,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,470 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-02-05 10:31:46,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:31:46,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:31:46,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:31:46,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:31:46,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,524 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]. [2024-02-05 10:31:46,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:31:46,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:31:46,554 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:31:46,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:31:46,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (1/1) ... [2024-02-05 10:31:46,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:31:46,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:31:46,594 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) [2024-02-05 10:31:46,616 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 [2024-02-05 10:31:46,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:31:46,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-05 10:31:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-05 10:31:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-05 10:31:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-05 10:31:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-05 10:31:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-05 10:31:46,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-05 10:31:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-05 10:31:46,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:31:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:31:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:31:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:31:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:31:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-05 10:31:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:31:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-05 10:31:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:31:46,642 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:31:46,806 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:31:46,809 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:31:47,210 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:31:47,210 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:31:47,390 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:31:47,391 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-05 10:31:47,391 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:31:47 BoogieIcfgContainer [2024-02-05 10:31:47,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:31:47,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:31:47,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:31:47,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:31:47,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:31:45" (1/4) ... [2024-02-05 10:31:47,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bed0716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:31:47, skipping insertion in model container [2024-02-05 10:31:47,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:46" (2/4) ... [2024-02-05 10:31:47,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bed0716 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:31:47, skipping insertion in model container [2024-02-05 10:31:47,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:46" (3/4) ... [2024-02-05 10:31:47,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bed0716 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:31:47, skipping insertion in model container [2024-02-05 10:31:47,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:31:47" (4/4) ... [2024-02-05 10:31:47,401 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-02-05 10:31:47,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:31:47,417 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-02-05 10:31:47,418 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:31:47,552 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-05 10:31:47,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 270 flow [2024-02-05 10:31:47,675 INFO L124 PetriNetUnfolderBase]: 8/117 cut-off events. [2024-02-05 10:31:47,675 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-05 10:31:47,680 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. [2024-02-05 10:31:47,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 121 transitions, 270 flow [2024-02-05 10:31:47,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 116 transitions, 256 flow [2024-02-05 10:31:47,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:31:47,712 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;@2b4b0903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:31:47,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-02-05 10:31:47,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:31:47,716 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:31:47,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:31:47,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:31:47,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:31:47,718 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-05 10:31:47,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:31:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 14818, now seen corresponding path program 1 times [2024-02-05 10:31:47,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:31:47,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119463956] [2024-02-05 10:31:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:31:47,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:31:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:31:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:31:48,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:31:48,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119463956] [2024-02-05 10:31:48,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119463956] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:31:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:31:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:31:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129896401] [2024-02-05 10:31:48,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:31:48,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:31:48,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:31:48,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:31:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:31:48,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 121 [2024-02-05 10:31:48,343 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) [2024-02-05 10:31:48,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:31:48,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 121 [2024-02-05 10:31:48,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:32:01,228 INFO L124 PetriNetUnfolderBase]: 91706/154429 cut-off events. [2024-02-05 10:32:01,228 INFO L125 PetriNetUnfolderBase]: For 4178/4178 co-relation queries the response was YES. [2024-02-05 10:32:01,720 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. [2024-02-05 10:32:02,662 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 60 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-02-05 10:32:02,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 111 transitions, 370 flow [2024-02-05 10:32:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:32:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:32:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-02-05 10:32:02,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6225895316804407 [2024-02-05 10:32:02,677 INFO L175 Difference]: Start difference. First operand has 121 places, 116 transitions, 256 flow. Second operand 3 states and 226 transitions. [2024-02-05 10:32:02,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 111 transitions, 370 flow [2024-02-05 10:32:02,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 354 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-05 10:32:02,812 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 234 flow [2024-02-05 10:32:02,818 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} [2024-02-05 10:32:02,822 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -7 predicate places. [2024-02-05 10:32:02,828 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 234 flow [2024-02-05 10:32:02,828 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) [2024-02-05 10:32:02,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:32:02,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-05 10:32:02,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:32:02,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-05 10:32:02,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:32:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash 459861, now seen corresponding path program 1 times [2024-02-05 10:32:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:32:02,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665368747] [2024-02-05 10:32:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:32:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:32:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:32:02,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:32:02,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:32:02,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665368747] [2024-02-05 10:32:02,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665368747] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:32:02,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:32:02,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:32:02,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888828599] [2024-02-05 10:32:02,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:32:02,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:32:02,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:32:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:32:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:32:02,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 121 [2024-02-05 10:32:02,975 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) [2024-02-05 10:32:02,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:32:02,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 121 [2024-02-05 10:32:02,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:32:12,578 INFO L124 PetriNetUnfolderBase]: 91706/154428 cut-off events. [2024-02-05 10:32:12,578 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2024-02-05 10:32:12,954 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. [2024-02-05 10:32:14,145 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 59 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-02-05 10:32:14,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 110 transitions, 354 flow [2024-02-05 10:32:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:32:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:32:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-02-05 10:32:14,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6170798898071626 [2024-02-05 10:32:14,148 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 234 flow. Second operand 3 states and 224 transitions. [2024-02-05 10:32:14,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 110 transitions, 354 flow [2024-02-05 10:32:14,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:32:14,151 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 232 flow [2024-02-05 10:32:14,152 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} [2024-02-05 10:32:14,152 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -8 predicate places. [2024-02-05 10:32:14,153 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 232 flow [2024-02-05 10:32:14,153 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) [2024-02-05 10:32:14,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:32:14,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-05 10:32:14,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:32:14,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-05 10:32:14,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:32:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash 14256199, now seen corresponding path program 1 times [2024-02-05 10:32:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:32:14,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222278735] [2024-02-05 10:32:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:32:14,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:32:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:32:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:32:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:32:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222278735] [2024-02-05 10:32:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222278735] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:32:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:32:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:32:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870018481] [2024-02-05 10:32:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:32:14,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:32:14,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:32:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:32:14,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:32:14,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 121 [2024-02-05 10:32:14,253 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) [2024-02-05 10:32:14,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:32:14,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 121 [2024-02-05 10:32:14,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:32:22,903 INFO L124 PetriNetUnfolderBase]: 91706/154427 cut-off events. [2024-02-05 10:32:22,904 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2024-02-05 10:32:23,275 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. [2024-02-05 10:32:24,277 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-02-05 10:32:24,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 350 flow [2024-02-05 10:32:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:32:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:32:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-02-05 10:32:24,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6225895316804407 [2024-02-05 10:32:24,279 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 232 flow. Second operand 3 states and 226 transitions. [2024-02-05 10:32:24,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 350 flow [2024-02-05 10:32:24,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:32:24,282 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 230 flow [2024-02-05 10:32:24,282 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} [2024-02-05 10:32:24,283 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -9 predicate places. [2024-02-05 10:32:24,283 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 230 flow [2024-02-05 10:32:24,284 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) [2024-02-05 10:32:24,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:32:24,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:32:24,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-05 10:32:24,284 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-02-05 10:32:24,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:32:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 441942647, now seen corresponding path program 1 times [2024-02-05 10:32:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:32:24,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791623457] [2024-02-05 10:32:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:32:24,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:32:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:32:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:32:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:32:24,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791623457] [2024-02-05 10:32:24,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791623457] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:32:24,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:32:24,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:32:24,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683331833] [2024-02-05 10:32:24,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:32:24,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:32:24,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:32:24,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:32:24,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:32:24,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 121 [2024-02-05 10:32:24,341 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) [2024-02-05 10:32:24,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:32:24,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 121 [2024-02-05 10:32:24,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand