./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x6.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-exp2x6.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 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-exp2x6.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x6.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-ab2e0ac-m [2024-01-29 14:17:23,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:17:23,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:17:23,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:17:23,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:17:23,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:17:23,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:17:23,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:17:23,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:17:23,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:17:23,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:17:23,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:17:23,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:17:23,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:17:23,594 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:17:23,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:17:23,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:17:23,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:17:23,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:17:23,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:17:23,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:17:23,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:17:23,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:17:23,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:17:23,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:17:23,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:17:23,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:17:23,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:17:23,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:17:23,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:17:23,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:17:23,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:17:23,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:23,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:17:23,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:17:23,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:17:23,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:17:23,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:17:23,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:17:23,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:17:23,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:17:23,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:17:23,828 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:17:23,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2024-01-29 14:17:24,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:17:24,931 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:17:24,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2024-01-29 14:17:24,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/335b8a61b/ef01365ccf974e539c295f7c8e8697e7/FLAGa8974506b [2024-01-29 14:17:24,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/335b8a61b/ef01365ccf974e539c295f7c8e8697e7 [2024-01-29 14:17:24,956 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:17:24,957 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:17:24,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x6.wvr.yml/witness.yml [2024-01-29 14:17:25,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:17:25,056 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:17:25,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:25,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:17:25,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:17:25,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:24" (1/2) ... [2024-01-29 14:17:25,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d1df64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:24" (1/2) ... [2024-01-29 14:17:25,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3815fe3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:25" (2/2) ... [2024-01-29 14:17:25,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d1df64 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:25" (2/2) ... [2024-01-29 14:17:25,065 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:17:25,084 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:17:25,085 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,085 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,085 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,085 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] n == 0U [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Loop invariant at [L60-L65] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Loop invariant at [L49-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,086 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] x4 == 0U [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] n == 0U [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] x3 == 0U [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Loop invariant at [L71-L76] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,087 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,088 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,088 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,088 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,088 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,088 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant after [L38-L43] n == 0U [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] n == 0U [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] x4 == 0U [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x3 == 0U [2024-01-29 14:17:25,089 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x2 == 0U [2024-01-29 14:17:25,090 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x4 == 0U [2024-01-29 14:17:25,090 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] n == 0U [2024-01-29 14:17:25,090 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,090 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x2 == 0U [2024-01-29 14:17:25,090 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-29 14:17:25,091 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x4 == 0U [2024-01-29 14:17:25,091 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x3 == 0U [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] n == 0U [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )x1 + (long long )x3 >= 0LL [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x1 == 0U [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )x1 - (long long )x3 >= 0LL [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-29 14:17:25,092 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-29 14:17:25,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:17:25,269 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-exp2x6.wvr.c[2505,2518] [2024-01-29 14:17:25,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:25,288 INFO L202 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:17:25,368 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-exp2x6.wvr.c[2505,2518] [2024-01-29 14:17:25,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:25,379 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:17:25,379 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25 WrapperNode [2024-01-29 14:17:25,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:25,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:25,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:17:25,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:17:25,389 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 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,397 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 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,417 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-29 14:17:25,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:25,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:17:25,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:17:25,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:17:25,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,443 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]. [2024-01-29 14:17:25,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,448 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:17:25,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:17:25,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:17:25,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:17:25,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (1/1) ... [2024-01-29 14:17:25,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:25,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:17:25,484 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) [2024-01-29 14:17:25,486 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 [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:17:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:17:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:17:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:17:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:17:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:17:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:17:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:17:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:17:25,514 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:17:25,592 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:17:25,593 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:17:25,870 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:17:25,870 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:17:25,974 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:17:25,974 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 14:17:25,975 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:25 BoogieIcfgContainer [2024-01-29 14:17:25,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:17:25,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:17:25,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:17:25,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:17:25,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:17:24" (1/4) ... [2024-01-29 14:17:25,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276d5073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:25" (2/4) ... [2024-01-29 14:17:25,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276d5073 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:25" (3/4) ... [2024-01-29 14:17:25,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276d5073 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:25, skipping insertion in model container [2024-01-29 14:17:25,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:25" (4/4) ... [2024-01-29 14:17:25,984 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2024-01-29 14:17:25,998 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:17:25,999 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2024-01-29 14:17:25,999 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:17:26,078 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 14:17:26,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 131 transitions, 290 flow [2024-01-29 14:17:26,171 INFO L124 PetriNetUnfolderBase]: 4/127 cut-off events. [2024-01-29 14:17:26,171 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:17:26,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 127 events. 4/127 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 352 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2024-01-29 14:17:26,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 131 transitions, 290 flow [2024-01-29 14:17:26,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 126 transitions, 276 flow [2024-01-29 14:17:26,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:17:26,195 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;@194cec8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:17:26,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-29 14:17:26,197 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:17:26,198 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:17:26,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:17:26,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:26,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:17:26,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:26,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash 14457, now seen corresponding path program 1 times [2024-01-29 14:17:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:26,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409903731] [2024-01-29 14:17:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:26,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:26,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409903731] [2024-01-29 14:17:26,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409903731] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:26,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:26,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223886201] [2024-01-29 14:17:26,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:26,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:26,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:26,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 131 [2024-01-29 14:17:26,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-01-29 14:17:26,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:26,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 131 [2024-01-29 14:17:26,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:29,893 INFO L124 PetriNetUnfolderBase]: 24674/40944 cut-off events. [2024-01-29 14:17:29,893 INFO L125 PetriNetUnfolderBase]: For 1361/1361 co-relation queries the response was YES. [2024-01-29 14:17:30,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73170 conditions, 40944 events. 24674/40944 cut-off events. For 1361/1361 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360676 event pairs, 17952 based on Foata normal form. 6/37461 useless extension candidates. Maximal degree in co-relation 65738. Up to 31020 conditions per place. [2024-01-29 14:17:30,227 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 46 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-01-29 14:17:30,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 120 transitions, 360 flow [2024-01-29 14:17:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2024-01-29 14:17:30,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7175572519083969 [2024-01-29 14:17:30,249 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 276 flow. Second operand 3 states and 282 transitions. [2024-01-29 14:17:30,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 120 transitions, 360 flow [2024-01-29 14:17:30,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 120 transitions, 344 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 14:17:30,287 INFO L231 Difference]: Finished difference. Result has 123 places, 120 transitions, 252 flow [2024-01-29 14:17:30,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2024-01-29 14:17:30,293 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -12 predicate places. [2024-01-29 14:17:30,294 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 252 flow [2024-01-29 14:17:30,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-01-29 14:17:30,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:30,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:17:30,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:17:30,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:30,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:30,296 INFO L85 PathProgramCache]: Analyzing trace with hash 480377719, now seen corresponding path program 1 times [2024-01-29 14:17:30,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:30,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611748154] [2024-01-29 14:17:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:30,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:30,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:30,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611748154] [2024-01-29 14:17:30,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611748154] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:30,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:30,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:30,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880011190] [2024-01-29 14:17:30,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:30,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:30,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 131 [2024-01-29 14:17:30,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-01-29 14:17:30,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:30,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 131 [2024-01-29 14:17:30,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:34,045 INFO L124 PetriNetUnfolderBase]: 44633/68006 cut-off events. [2024-01-29 14:17:34,045 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-01-29 14:17:34,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124928 conditions, 68006 events. 44633/68006 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 3420. Compared 556408 event pairs, 34013 based on Foata normal form. 3/53452 useless extension candidates. Maximal degree in co-relation 124909. Up to 56255 conditions per place. [2024-01-29 14:17:34,444 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 49 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-01-29 14:17:34,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 344 flow [2024-01-29 14:17:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:34,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-01-29 14:17:34,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6997455470737913 [2024-01-29 14:17:34,447 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 252 flow. Second operand 3 states and 275 transitions. [2024-01-29 14:17:34,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 344 flow [2024-01-29 14:17:34,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:34,451 INFO L231 Difference]: Finished difference. Result has 118 places, 115 transitions, 242 flow [2024-01-29 14:17:34,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=118, PETRI_TRANSITIONS=115} [2024-01-29 14:17:34,452 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -17 predicate places. [2024-01-29 14:17:34,452 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 115 transitions, 242 flow [2024-01-29 14:17:34,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-01-29 14:17:34,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:34,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:34,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:17:34,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:34,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2081502326, now seen corresponding path program 1 times [2024-01-29 14:17:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801311895] [2024-01-29 14:17:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:34,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:34,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:34,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801311895] [2024-01-29 14:17:34,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801311895] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:34,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:34,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439569352] [2024-01-29 14:17:34,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:34,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:34,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:34,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:34,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 131 [2024-01-29 14:17:34,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-01-29 14:17:34,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:34,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 131 [2024-01-29 14:17:34,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:36,815 INFO L124 PetriNetUnfolderBase]: 24674/40935 cut-off events. [2024-01-29 14:17:36,816 INFO L125 PetriNetUnfolderBase]: For 307/307 co-relation queries the response was YES. [2024-01-29 14:17:36,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72358 conditions, 40935 events. 24674/40935 cut-off events. For 307/307 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360481 event pairs, 17952 based on Foata normal form. 3/37455 useless extension candidates. Maximal degree in co-relation 72323. Up to 31015 conditions per place. [2024-01-29 14:17:37,043 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 44 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-01-29 14:17:37,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 326 flow [2024-01-29 14:17:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:37,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2024-01-29 14:17:37,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7302798982188295 [2024-01-29 14:17:37,046 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 242 flow. Second operand 3 states and 287 transitions. [2024-01-29 14:17:37,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 326 flow [2024-01-29 14:17:37,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:37,049 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 234 flow [2024-01-29 14:17:37,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, 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} [2024-01-29 14:17:37,051 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -21 predicate places. [2024-01-29 14:17:37,051 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 234 flow [2024-01-29 14:17:37,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2024-01-29 14:17:37,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:37,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:37,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:17:37,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:37,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1131010895, now seen corresponding path program 1 times [2024-01-29 14:17:37,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:37,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680932460] [2024-01-29 14:17:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:37,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:37,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:37,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680932460] [2024-01-29 14:17:37,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680932460] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:37,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:37,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:37,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324005514] [2024-01-29 14:17:37,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:37,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:37,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:37,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:37,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 131 [2024-01-29 14:17:37,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-29 14:17:37,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:37,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 131 [2024-01-29 14:17:37,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:39,336 INFO L124 PetriNetUnfolderBase]: 24674/40933 cut-off events. [2024-01-29 14:17:39,336 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-01-29 14:17:39,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72356 conditions, 40933 events. 24674/40933 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360629 event pairs, 17952 based on Foata normal form. 1/37452 useless extension candidates. Maximal degree in co-relation 72325. Up to 31017 conditions per place. [2024-01-29 14:17:39,552 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 44 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-29 14:17:39,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 322 flow [2024-01-29 14:17:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-01-29 14:17:39,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7404580152671756 [2024-01-29 14:17:39,555 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 234 flow. Second operand 3 states and 291 transitions. [2024-01-29 14:17:39,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 322 flow [2024-01-29 14:17:39,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:39,557 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 230 flow [2024-01-29 14:17:39,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, 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} [2024-01-29 14:17:39,558 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -23 predicate places. [2024-01-29 14:17:39,558 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 230 flow [2024-01-29 14:17:39,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-29 14:17:39,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:39,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:39,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:17:39,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:39,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2023232233, now seen corresponding path program 1 times [2024-01-29 14:17:39,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:39,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033104179] [2024-01-29 14:17:39,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:39,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:39,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033104179] [2024-01-29 14:17:39,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033104179] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:39,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:39,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:17:39,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218227482] [2024-01-29 14:17:39,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:39,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:39,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:39,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 131 [2024-01-29 14:17:39,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2024-01-29 14:17:39,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:39,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 131 [2024-01-29 14:17:39,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:41,862 INFO L124 PetriNetUnfolderBase]: 24674/40931 cut-off events. [2024-01-29 14:17:41,862 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-01-29 14:17:41,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72357 conditions, 40931 events. 24674/40931 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360662 event pairs, 17952 based on Foata normal form. 1/37451 useless extension candidates. Maximal degree in co-relation 72333. Up to 31016 conditions per place. [2024-01-29 14:17:42,116 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 47 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-29 14:17:42,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 107 transitions, 324 flow [2024-01-29 14:17:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:42,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-01-29 14:17:42,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7099236641221374 [2024-01-29 14:17:42,118 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 230 flow. Second operand 3 states and 279 transitions. [2024-01-29 14:17:42,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 107 transitions, 324 flow [2024-01-29 14:17:42,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 107 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:42,120 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 226 flow [2024-01-29 14:17:42,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-01-29 14:17:42,121 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -25 predicate places. [2024-01-29 14:17:42,121 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 226 flow [2024-01-29 14:17:42,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2024-01-29 14:17:42,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:42,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:42,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:17:42,122 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:42,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash -789069194, now seen corresponding path program 1 times [2024-01-29 14:17:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880868095] [2024-01-29 14:17:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:42,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:42,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880868095] [2024-01-29 14:17:42,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880868095] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:42,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:17:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103255036] [2024-01-29 14:17:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:42,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:17:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:17:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:17:42,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 131 [2024-01-29 14:17:42,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-01-29 14:17:42,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:42,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 131 [2024-01-29 14:17:42,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:44,287 INFO L124 PetriNetUnfolderBase]: 26790/38519 cut-off events. [2024-01-29 14:17:44,287 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:17:44,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72164 conditions, 38519 events. 26790/38519 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1933. Compared 281722 event pairs, 1602 based on Foata normal form. 1600/38749 useless extension candidates. Maximal degree in co-relation 72138. Up to 30153 conditions per place. [2024-01-29 14:17:44,468 INFO L140 encePairwiseOnDemand]: 122/131 looper letters, 70 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2024-01-29 14:17:44,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 125 transitions, 409 flow [2024-01-29 14:17:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:17:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:17:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2024-01-29 14:17:44,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7232824427480916 [2024-01-29 14:17:44,470 INFO L175 Difference]: Start difference. First operand has 110 places, 107 transitions, 226 flow. Second operand 4 states and 379 transitions. [2024-01-29 14:17:44,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 125 transitions, 409 flow [2024-01-29 14:17:44,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 125 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:44,472 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 212 flow [2024-01-29 14:17:44,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2024-01-29 14:17:44,473 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -31 predicate places. [2024-01-29 14:17:44,473 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 212 flow [2024-01-29 14:17:44,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-01-29 14:17:44,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:44,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:44,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:17:44,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:44,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:44,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1910314738, now seen corresponding path program 1 times [2024-01-29 14:17:44,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:44,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673163881] [2024-01-29 14:17:44,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:44,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:44,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:44,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673163881] [2024-01-29 14:17:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673163881] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:44,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:44,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:17:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978691050] [2024-01-29 14:17:44,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:44,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:17:44,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:17:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:17:44,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 131 [2024-01-29 14:17:44,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-29 14:17:44,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:44,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 131 [2024-01-29 14:17:44,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:46,997 INFO L124 PetriNetUnfolderBase]: 27904/46043 cut-off events. [2024-01-29 14:17:46,998 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-01-29 14:17:47,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81637 conditions, 46043 events. 27904/46043 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 2379. Compared 403078 event pairs, 10422 based on Foata normal form. 1792/45636 useless extension candidates. Maximal degree in co-relation 81602. Up to 31785 conditions per place. [2024-01-29 14:17:47,208 INFO L140 encePairwiseOnDemand]: 122/131 looper letters, 76 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-01-29 14:17:47,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 124 transitions, 419 flow [2024-01-29 14:17:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:17:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:17:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 385 transitions. [2024-01-29 14:17:47,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7347328244274809 [2024-01-29 14:17:47,210 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 212 flow. Second operand 4 states and 385 transitions. [2024-01-29 14:17:47,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 124 transitions, 419 flow [2024-01-29 14:17:47,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 124 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:47,212 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 199 flow [2024-01-29 14:17:47,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2024-01-29 14:17:47,213 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -37 predicate places. [2024-01-29 14:17:47,213 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 199 flow [2024-01-29 14:17:47,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-29 14:17:47,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:47,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:47,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:17:47,213 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 14:17:47,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1913733498, now seen corresponding path program 1 times [2024-01-29 14:17:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:47,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296611820] [2024-01-29 14:17:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:47,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:17:47,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:17:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:17:47,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:17:47,257 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:17:47,257 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-01-29 14:17:47,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-01-29 14:17:47,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-01-29 14:17:47,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-01-29 14:17:47,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-01-29 14:17:47,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-01-29 14:17:47,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-01-29 14:17:47,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-01-29 14:17:47,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-01-29 14:17:47,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-01-29 14:17:47,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 82 remaining) [2024-01-29 14:17:47,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 82 remaining) [2024-01-29 14:17:47,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-01-29 14:17:47,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (39 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-01-29 14:17:47,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-01-29 14:17:47,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-01-29 14:17:47,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-01-29 14:17:47,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-01-29 14:17:47,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-01-29 14:17:47,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-01-29 14:17:47,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-01-29 14:17:47,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 82 remaining) [2024-01-29 14:17:47,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 82 remaining) [2024-01-29 14:17:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:17:47,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:17:47,274 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:17:47,274 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:17:47,315 INFO L503 ceAbstractionStarter]: Automizer considered 48 witness invariants [2024-01-29 14:17:47,315 INFO L504 ceAbstractionStarter]: WitnessConsidered=48 [2024-01-29 14:17:47,317 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:17:47 BasicIcfg [2024-01-29 14:17:47,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:17:47,317 INFO L158 Benchmark]: Toolchain (without parser) took 22261.13ms. Allocated memory was 167.8MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 134.5MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-01-29 14:17:47,317 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:47,319 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:47,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.09ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 116.6MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-29 14:17:47,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 167.8MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:17:47,320 INFO L158 Benchmark]: Boogie Preprocessor took 35.33ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 14:17:47,321 INFO L158 Benchmark]: RCFGBuilder took 518.85ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 71.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-29 14:17:47,321 INFO L158 Benchmark]: TraceAbstraction took 21340.28ms. Allocated memory was 167.8MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 70.5MB in the beginning and 11.1GB in the end (delta: -11.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-01-29 14:17:47,322 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.09ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 116.6MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 167.8MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.33ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 111.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 518.85ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 71.6MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21340.28ms. Allocated memory was 167.8MB in the beginning and 13.3GB in the end (delta: 13.1GB). Free memory was 70.5MB in the beginning and 11.1GB in the end (delta: -11.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 38]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L35] 0 unsigned int x1, x2, x3, x4, n; [L82] 0 pthread_t t1, t2, t3, t4; VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] [L85] 0 x1 = __VERIFIER_nondet_uint() [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] [L86] 0 x2 = __VERIFIER_nondet_uint() [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] [L87] 0 x3 = __VERIFIER_nondet_uint() [L88] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x4=0] [L88] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] [L88] 0 x4 = __VERIFIER_nondet_uint() [L89] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] [L89] 0 n = __VERIFIER_nondet_uint() [L92] CALL 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L32] COND FALSE 0 !(!cond) [L92] RET 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L94] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=1, x2=1, x3=1, x4=1] [L38] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x1=1, x2=1, x3=1, x4=1] [L38] COND FALSE 1 !(x1 < n) VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] [L38] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 97]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 202 locations, 82 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 345 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 782 IncrementalHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 33 mSDtfsCounter, 782 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 14:17:47,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE