./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.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/popl20-mult-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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/popl20-mult-equiv.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-equiv.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-3d25acf-m [2024-01-30 14:25:26,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:25:26,437 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:25:26,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:25:26,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:25:26,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:25:26,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:25:26,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:25:26,471 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:25:26,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:25:26,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:25:26,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:25:26,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:25:26,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:25:26,477 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:25:26,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:25:26,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:25:26,477 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:25:26,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:25:26,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:25:26,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:25:26,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:25:26,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:25:26,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:25:26,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:25:26,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:25:26,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:25:26,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:25:26,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:25:26,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:25:26,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:25:26,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:25:26,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:26,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:25:26,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:25:26,483 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:25:26,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:25:26,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:25:26,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:25:26,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:25:26,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:25:26,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:25:26,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:25:26,747 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:25:26,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2024-01-30 14:25:27,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:25:28,124 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:25:28,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2024-01-30 14:25:28,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91141b1e6/3bfa334b91364ab599be832dcc848fdb/FLAG83392738e [2024-01-30 14:25:28,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91141b1e6/3bfa334b91364ab599be832dcc848fdb [2024-01-30 14:25:28,148 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:25:28,148 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:25:28,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-equiv.wvr.yml/witness.yml [2024-01-30 14:25:28,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:25:28,246 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:25:28,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:28,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:25:28,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:25:28,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:28" (1/2) ... [2024-01-30 14:25:28,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4327c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:28" (1/2) ... [2024-01-30 14:25:28,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e4af2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:28" (2/2) ... [2024-01-30 14:25:28,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4327c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:28" (2/2) ... [2024-01-30 14:25:28,254 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:25:28,281 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:25:28,281 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] ((((L == 0U) && (M == 0U)) && (N == 0U)) && (p == 0U)) && (q == 0U) [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L68] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L49] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,282 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (p == 0U) && (q == 0U) [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] ((1U <= N) && ((unsigned long )_argptr == 0UL)) && (N != 0U) [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((2U <= N) && ((unsigned long )_argptr == 0UL)) && (N != 0U) [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Loop invariant at [L63-L73] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (((M == 0U) && (N == 0U)) && (p == 0U)) && (q == 0U) [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Loop invariant at [L79-L84] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,283 INFO L98 nessWitnessExtractor]: Loop invariant at [L44-L54] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,284 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,284 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,284 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((((unsigned long )_argptr == 0UL) && (M == 0U)) && (N == 0U)) && (p == 0U)) && (q == 0U) [2024-01-30 14:25:28,284 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,284 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] ((1U <= N) && ((unsigned long )_argptr == 0UL)) && (N != 0U) [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (N <= 4294967294U) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] ((N == 0U) && (p == 0U)) && (q == 0U) [2024-01-30 14:25:28,285 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] ((2U <= N) && ((unsigned long )_argptr == 0UL)) && (N != 0U) [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,286 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (N <= 4294967293U) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:25:28,287 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:25:28,427 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/popl20-mult-equiv.wvr.c[2630,2643] [2024-01-30 14:25:28,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:28,437 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 [2024-01-30 14:25:28,483 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/popl20-mult-equiv.wvr.c[2630,2643] [2024-01-30 14:25:28,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:28,494 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:25:28,495 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28 WrapperNode [2024-01-30 14:25:28,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:28,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:28,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:25:28,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:25:28,501 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 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,506 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 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,519 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2024-01-30 14:25:28,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:28,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:25:28,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:25:28,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:25:28,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,532 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,546 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-30 14:25:28,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:25:28,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:25:28,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:25:28,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:25:28,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:25:28,654 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) [2024-01-30 14:25:28,672 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 [2024-01-30 14:25:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:25:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:25:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:25:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:25:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:25:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:25:28,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:25:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:25:28,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:25:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:25:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:25:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:25:28,694 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:25:28,798 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:25:28,799 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:25:29,036 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:25:29,037 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:25:29,211 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:25:29,211 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-30 14:25:29,213 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:29 BoogieIcfgContainer [2024-01-30 14:25:29,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:25:29,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:25:29,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:25:29,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:25:29,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:25:28" (1/4) ... [2024-01-30 14:25:29,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24505824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:28" (2/4) ... [2024-01-30 14:25:29,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24505824 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28" (3/4) ... [2024-01-30 14:25:29,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24505824 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:29" (4/4) ... [2024-01-30 14:25:29,230 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2024-01-30 14:25:29,244 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:25:29,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-01-30 14:25:29,244 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:25:29,308 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-30 14:25:29,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 93 transitions, 207 flow [2024-01-30 14:25:29,364 INFO L124 PetriNetUnfolderBase]: 3/90 cut-off events. [2024-01-30 14:25:29,364 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:25:29,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 90 events. 3/90 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 322 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2024-01-30 14:25:29,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 93 transitions, 207 flow [2024-01-30 14:25:29,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 89 transitions, 196 flow [2024-01-30 14:25:29,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:25:29,395 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;@39ff04c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:25:29,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2024-01-30 14:25:29,400 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:25:29,400 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:25:29,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:25:29,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:29,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:25:29,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:29,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash 13924, now seen corresponding path program 1 times [2024-01-30 14:25:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463899996] [2024-01-30 14:25:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:29,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:29,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463899996] [2024-01-30 14:25:29,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463899996] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:29,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:29,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:29,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531895216] [2024-01-30 14:25:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:29,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:29,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:29,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-01-30 14:25:29,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 89 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-01-30 14:25:29,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:29,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-01-30 14:25:29,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:30,699 INFO L124 PetriNetUnfolderBase]: 2911/4946 cut-off events. [2024-01-30 14:25:30,699 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-01-30 14:25:30,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9453 conditions, 4946 events. 2911/4946 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 39480 event pairs, 2829 based on Foata normal form. 0/3064 useless extension candidates. Maximal degree in co-relation 8730. Up to 4239 conditions per place. [2024-01-30 14:25:30,753 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 40 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2024-01-30 14:25:30,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 77 transitions, 256 flow [2024-01-30 14:25:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-30 14:25:30,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-01-30 14:25:30,770 INFO L175 Difference]: Start difference. First operand has 96 places, 89 transitions, 196 flow. Second operand 3 states and 168 transitions. [2024-01-30 14:25:30,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 77 transitions, 256 flow [2024-01-30 14:25:30,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 244 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-30 14:25:30,795 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 164 flow [2024-01-30 14:25:30,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-01-30 14:25:30,801 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -16 predicate places. [2024-01-30 14:25:30,802 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 164 flow [2024-01-30 14:25:30,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-01-30 14:25:30,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:30,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:25:30,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:25:30,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:30,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash 432086, now seen corresponding path program 1 times [2024-01-30 14:25:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:30,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868005183] [2024-01-30 14:25:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:30,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:30,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868005183] [2024-01-30 14:25:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868005183] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:30,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43124013] [2024-01-30 14:25:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:30,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:30,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:30,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:30,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:30,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 93 [2024-01-30 14:25:30,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-01-30 14:25:30,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:30,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 93 [2024-01-30 14:25:30,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:31,354 INFO L124 PetriNetUnfolderBase]: 2518/4947 cut-off events. [2024-01-30 14:25:31,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:25:31,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8642 conditions, 4947 events. 2518/4947 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 43093 event pairs, 590 based on Foata normal form. 1/3299 useless extension candidates. Maximal degree in co-relation 8633. Up to 2664 conditions per place. [2024-01-30 14:25:31,379 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 52 selfloop transitions, 3 changer transitions 1/91 dead transitions. [2024-01-30 14:25:31,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 91 transitions, 306 flow [2024-01-30 14:25:31,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-01-30 14:25:31,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6379928315412187 [2024-01-30 14:25:31,382 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 164 flow. Second operand 3 states and 178 transitions. [2024-01-30 14:25:31,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 91 transitions, 306 flow [2024-01-30 14:25:31,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 91 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:31,383 INFO L231 Difference]: Finished difference. Result has 77 places, 73 transitions, 157 flow [2024-01-30 14:25:31,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2024-01-30 14:25:31,384 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -19 predicate places. [2024-01-30 14:25:31,384 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 157 flow [2024-01-30 14:25:31,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-01-30 14:25:31,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:31,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:25:31,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:25:31,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:31,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash 13395139, now seen corresponding path program 1 times [2024-01-30 14:25:31,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:31,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149542724] [2024-01-30 14:25:31,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:31,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:31,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149542724] [2024-01-30 14:25:31,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149542724] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:31,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:31,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:31,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962308111] [2024-01-30 14:25:31,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:31,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:31,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:31,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 93 [2024-01-30 14:25:31,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-01-30 14:25:31,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:31,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 93 [2024-01-30 14:25:31,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:31,976 INFO L124 PetriNetUnfolderBase]: 4210/7942 cut-off events. [2024-01-30 14:25:31,977 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-01-30 14:25:31,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14079 conditions, 7942 events. 4210/7942 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 67312 event pairs, 1658 based on Foata normal form. 0/5354 useless extension candidates. Maximal degree in co-relation 3476. Up to 3122 conditions per place. [2024-01-30 14:25:32,033 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 60 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2024-01-30 14:25:32,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 99 transitions, 341 flow [2024-01-30 14:25:32,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-01-30 14:25:32,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6738351254480287 [2024-01-30 14:25:32,038 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 157 flow. Second operand 3 states and 188 transitions. [2024-01-30 14:25:32,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 99 transitions, 341 flow [2024-01-30 14:25:32,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 99 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:32,041 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 165 flow [2024-01-30 14:25:32,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2024-01-30 14:25:32,042 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -20 predicate places. [2024-01-30 14:25:32,042 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 165 flow [2024-01-30 14:25:32,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-01-30 14:25:32,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:32,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:25:32,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:25:32,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:32,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash 415249712, now seen corresponding path program 1 times [2024-01-30 14:25:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:32,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865278183] [2024-01-30 14:25:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:32,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865278183] [2024-01-30 14:25:32,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865278183] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:32,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:32,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:32,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600551727] [2024-01-30 14:25:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:32,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:32,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:32,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 93 [2024-01-30 14:25:32,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-30 14:25:32,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:32,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 93 [2024-01-30 14:25:32,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:33,002 INFO L124 PetriNetUnfolderBase]: 7017/12587 cut-off events. [2024-01-30 14:25:33,002 INFO L125 PetriNetUnfolderBase]: For 1251/1261 co-relation queries the response was YES. [2024-01-30 14:25:33,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23550 conditions, 12587 events. 7017/12587 cut-off events. For 1251/1261 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 107451 event pairs, 1511 based on Foata normal form. 10/9255 useless extension candidates. Maximal degree in co-relation 7969. Up to 7121 conditions per place. [2024-01-30 14:25:33,067 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 60 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-01-30 14:25:33,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 101 transitions, 365 flow [2024-01-30 14:25:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-01-30 14:25:33,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6845878136200717 [2024-01-30 14:25:33,069 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 165 flow. Second operand 3 states and 191 transitions. [2024-01-30 14:25:33,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 101 transitions, 365 flow [2024-01-30 14:25:33,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 101 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:25:33,076 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 209 flow [2024-01-30 14:25:33,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2024-01-30 14:25:33,077 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -18 predicate places. [2024-01-30 14:25:33,078 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 209 flow [2024-01-30 14:25:33,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-30 14:25:33,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:33,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:33,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:25:33,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:33,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:33,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1198908575, now seen corresponding path program 1 times [2024-01-30 14:25:33,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:33,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489313282] [2024-01-30 14:25:33,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:33,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:33,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:33,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489313282] [2024-01-30 14:25:33,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489313282] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:33,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:33,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748137120] [2024-01-30 14:25:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:33,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:33,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:33,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 93 [2024-01-30 14:25:33,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-01-30 14:25:33,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:33,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 93 [2024-01-30 14:25:33,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:33,882 INFO L124 PetriNetUnfolderBase]: 5460/9456 cut-off events. [2024-01-30 14:25:33,883 INFO L125 PetriNetUnfolderBase]: For 4180/4782 co-relation queries the response was YES. [2024-01-30 14:25:33,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19818 conditions, 9456 events. 5460/9456 cut-off events. For 4180/4782 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 74351 event pairs, 729 based on Foata normal form. 1696/10011 useless extension candidates. Maximal degree in co-relation 3170. Up to 7011 conditions per place. [2024-01-30 14:25:33,943 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 57 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-01-30 14:25:33,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 365 flow [2024-01-30 14:25:33,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2024-01-30 14:25:33,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5483870967741935 [2024-01-30 14:25:33,945 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 209 flow. Second operand 4 states and 204 transitions. [2024-01-30 14:25:33,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 365 flow [2024-01-30 14:25:33,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 87 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:33,952 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 183 flow [2024-01-30 14:25:33,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-01-30 14:25:33,953 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2024-01-30 14:25:33,954 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 183 flow [2024-01-30 14:25:33,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-01-30 14:25:33,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:33,954 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:33,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:25:33,954 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-30 14:25:33,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1488539347, now seen corresponding path program 1 times [2024-01-30 14:25:33,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:33,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499026727] [2024-01-30 14:25:33,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:33,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:25:33,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:25:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:25:33,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:25:33,992 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:25:33,993 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 78 remaining) [2024-01-30 14:25:33,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 78 remaining) [2024-01-30 14:25:33,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 78 remaining) [2024-01-30 14:25:33,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 78 remaining) [2024-01-30 14:25:33,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 78 remaining) [2024-01-30 14:25:33,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 78 remaining) [2024-01-30 14:25:33,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 78 remaining) [2024-01-30 14:25:33,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 78 remaining) [2024-01-30 14:25:33,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 78 remaining) [2024-01-30 14:25:33,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 78 remaining) [2024-01-30 14:25:33,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 78 remaining) [2024-01-30 14:25:33,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 78 remaining) [2024-01-30 14:25:33,997 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 78 remaining) [2024-01-30 14:25:33,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 78 remaining) [2024-01-30 14:25:33,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 78 remaining) [2024-01-30 14:25:33,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 78 remaining) [2024-01-30 14:25:33,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 78 remaining) [2024-01-30 14:25:33,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 78 remaining) [2024-01-30 14:25:33,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 78 remaining) [2024-01-30 14:25:33,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 78 remaining) [2024-01-30 14:25:33,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 78 remaining) [2024-01-30 14:25:33,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 78 remaining) [2024-01-30 14:25:33,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 78 remaining) [2024-01-30 14:25:34,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 78 remaining) [2024-01-30 14:25:34,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 78 remaining) [2024-01-30 14:25:34,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 78 remaining) [2024-01-30 14:25:34,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 78 remaining) [2024-01-30 14:25:34,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 78 remaining) [2024-01-30 14:25:34,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 78 remaining) [2024-01-30 14:25:34,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 78 remaining) [2024-01-30 14:25:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (37 of 78 remaining) [2024-01-30 14:25:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 78 remaining) [2024-01-30 14:25:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 78 remaining) [2024-01-30 14:25:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 78 remaining) [2024-01-30 14:25:34,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 78 remaining) [2024-01-30 14:25:34,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 78 remaining) [2024-01-30 14:25:34,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 78 remaining) [2024-01-30 14:25:34,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 78 remaining) [2024-01-30 14:25:34,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 78 remaining) [2024-01-30 14:25:34,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 78 remaining) [2024-01-30 14:25:34,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 78 remaining) [2024-01-30 14:25:34,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 78 remaining) [2024-01-30 14:25:34,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 78 remaining) [2024-01-30 14:25:34,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 78 remaining) [2024-01-30 14:25:34,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 78 remaining) [2024-01-30 14:25:34,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 78 remaining) [2024-01-30 14:25:34,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 78 remaining) [2024-01-30 14:25:34,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 78 remaining) [2024-01-30 14:25:34,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 78 remaining) [2024-01-30 14:25:34,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 78 remaining) [2024-01-30 14:25:34,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 78 remaining) [2024-01-30 14:25:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 78 remaining) [2024-01-30 14:25:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 78 remaining) [2024-01-30 14:25:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 78 remaining) [2024-01-30 14:25:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 78 remaining) [2024-01-30 14:25:34,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 78 remaining) [2024-01-30 14:25:34,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 78 remaining) [2024-01-30 14:25:34,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 78 remaining) [2024-01-30 14:25:34,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:25:34,010 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-30 14:25:34,016 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:25:34,016 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:25:34,033 INFO L503 ceAbstractionStarter]: Automizer considered 39 witness invariants [2024-01-30 14:25:34,033 INFO L504 ceAbstractionStarter]: WitnessConsidered=39 [2024-01-30 14:25:34,033 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:25:34 BasicIcfg [2024-01-30 14:25:34,034 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:25:34,034 INFO L158 Benchmark]: Toolchain (without parser) took 5788.13ms. Allocated memory was 159.4MB in the beginning and 851.4MB in the end (delta: 692.1MB). Free memory was 85.9MB in the beginning and 394.3MB in the end (delta: -308.3MB). Peak memory consumption was 386.7MB. Max. memory is 16.1GB. [2024-01-30 14:25:34,034 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:34,034 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:34,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.15ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 68.6MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-30 14:25:34,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.59ms. Allocated memory is still 159.4MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:34,035 INFO L158 Benchmark]: Boogie Preprocessor took 76.04ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 131.4MB in the end (delta: -64.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-01-30 14:25:34,035 INFO L158 Benchmark]: RCFGBuilder took 616.11ms. Allocated memory is still 159.4MB. Free memory was 131.4MB in the beginning and 81.0MB in the end (delta: 50.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-01-30 14:25:34,036 INFO L158 Benchmark]: TraceAbstraction took 4818.17ms. Allocated memory was 159.4MB in the beginning and 851.4MB in the end (delta: 692.1MB). Free memory was 80.4MB in the beginning and 394.3MB in the end (delta: -313.8MB). Peak memory consumption was 378.9MB. Max. memory is 16.1GB. [2024-01-30 14:25:34,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.15ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 68.6MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.59ms. Allocated memory is still 159.4MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.04ms. Allocated memory is still 159.4MB. Free memory was 66.9MB in the beginning and 131.4MB in the end (delta: -64.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * RCFGBuilder took 616.11ms. Allocated memory is still 159.4MB. Free memory was 131.4MB in the beginning and 81.0MB in the end (delta: 50.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4818.17ms. Allocated memory was 159.4MB in the beginning and 851.4MB in the end (delta: 692.1MB). Free memory was 80.4MB in the beginning and 394.3MB in the end (delta: -313.8MB). Peak memory consumption was 378.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int L, M, N, p, q; [L90] 0 pthread_t t1, t2, t3; VAL [L=0, M=0, N=0, p=0, q=0, t1={5:0}, t2={6:0}, t3={3:0}] [L92] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[L],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[p],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[q],IntegerLiteral[0U]]]]] [L92] 0 L = __VERIFIER_nondet_uint() [L93] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[p],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[q],IntegerLiteral[0U]]]]] [L93] 0 M = __VERIFIER_nondet_uint() [L94] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[p],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[q],IntegerLiteral[0U]]]]] [L94] 0 N = L VAL [L=0, N=0, p=0, q=0, t1={5:0}, t2={6:0}, t3={3:0}] [L97] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[p],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[q],IntegerLiteral[0U]]]]] [L97] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [L=0, N=0, _argptr={0:0}, p=0, q=0, t1={5:0}, t2={6:0}, t3={3:0}] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [L=0, N=0, _argptr={0:0}, _argptr={0:0}, p=0, q=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 _Bool cond = N > 0; [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[p],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[q],IntegerLiteral[0U]]]]] VAL [L=0, M=1, N=0, _argptr={0:0}, _argptr={0:0}, cond=0, p=0, q=0] - 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: 44]: 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: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: 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: 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: 44]: 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: 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: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: 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: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: 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. - 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: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 80]: 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: 81]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 97]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 105]: 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: 99]: 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: 98]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 161 locations, 78 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: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 209 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 10 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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! [2024-01-30 14:25:34,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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