./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.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/parallel-misc-2-unrolled.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/parallel-misc-2-unrolled.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2-unrolled.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-8857f20-m [2024-01-29 22:57:32,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:57:33,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:57:33,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:57:33,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:57:33,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:57:33,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:57:33,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:57:33,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:57:33,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:57:33,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:57:33,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:57:33,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:57:33,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:57:33,058 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:57:33,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:57:33,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:57:33,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:57:33,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:57:33,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:57:33,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:57:33,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:57:33,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:57:33,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:57:33,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:57:33,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:57:33,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:57:33,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:57:33,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:57:33,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:57:33,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:57:33,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:57:33,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:33,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:57:33,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:57:33,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:57:33,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:57:33,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:57:33,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:57:33,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:57:33,064 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:57:33,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:57:33,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:57:33,065 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:57:33,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:57:33,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:57:33,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:57:33,301 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:57:33,302 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:57:33,303 INFO L431 ainManager$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/parallel-misc-2-unrolled.wvr.yml/witness.yml [2024-01-29 22:57:33,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:57:33,440 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:57:33,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-29 22:57:34,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:57:34,580 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:57:34,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-29 22:57:34,585 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60090246/5cd08a74ffef41b0b4d9d5464a85277a/FLAG8686c37d0 [2024-01-29 22:57:34,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60090246/5cd08a74ffef41b0b4d9d5464a85277a [2024-01-29 22:57:34,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:57:34,597 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:57:34,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:34,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:57:34,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:57:34,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:33" (1/2) ... [2024-01-29 22:57:34,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fb0e91 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:34, skipping insertion in model container [2024-01-29 22:57:34,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:33" (1/2) ... [2024-01-29 22:57:34,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3735f66d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:34, skipping insertion in model container [2024-01-29 22:57:34,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:34" (2/2) ... [2024-01-29 22:57:34,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fb0e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34, skipping insertion in model container [2024-01-29 22:57:34,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:34" (2/2) ... [2024-01-29 22:57:34,605 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:57:34,615 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:57:34,616 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,616 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,616 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,616 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (i1 == 0U) && (N == 0U) [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] i1 == 0U [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (i1 == 0U) && (i2 == 0U) [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,617 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (pos == 0U) && (N == 0U) [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] pos == 0U [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (pos == 0U) && (i2 == 0U) [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (pos == 0U) && (i1 == 0U) [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Loop invariant at [L55-L64] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] N == 0U [2024-01-29 22:57:34,618 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (i2 == 0U) && (N == 0U) [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] i2 == 0U [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] N == 0U [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (N == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,619 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,620 INFO L98 nessWitnessExtractor]: Loop invariant at [L40-L49] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,620 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,620 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,620 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,620 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:57:34,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:57:34,786 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/parallel-misc-2-unrolled.wvr.c[2358,2371] [2024-01-29 22:57:34,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:34,794 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 [2024-01-29 22:57:34,845 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/parallel-misc-2-unrolled.wvr.c[2358,2371] [2024-01-29 22:57:34,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:34,857 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:57:34,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34 WrapperNode [2024-01-29 22:57:34,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:34,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:34,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:57:34,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:57:34,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,885 INFO L138 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-01-29 22:57:34,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:34,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:57:34,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:57:34,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:57:34,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,908 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 22:57:34,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:57:34,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:57:34,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:57:34,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:57:34,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (1/1) ... [2024-01-29 22:57:34,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:57:34,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:57:34,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:57:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:57:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:57:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:57:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:57:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:57:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:57:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:57:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:57:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:57:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:57:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:57:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:57:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:57:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:57:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:57:34,991 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:57:35,089 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:57:35,091 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:57:35,389 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:57:35,389 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:57:35,535 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:57:35,539 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 22:57:35,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:35 BoogieIcfgContainer [2024-01-29 22:57:35,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:57:35,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:57:35,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:57:35,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:57:35,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:33" (1/4) ... [2024-01-29 22:57:35,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec401ec and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:57:35, skipping insertion in model container [2024-01-29 22:57:35,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:57:34" (2/4) ... [2024-01-29 22:57:35,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec401ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:35, skipping insertion in model container [2024-01-29 22:57:35,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:34" (3/4) ... [2024-01-29 22:57:35,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec401ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:35, skipping insertion in model container [2024-01-29 22:57:35,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:35" (4/4) ... [2024-01-29 22:57:35,550 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-01-29 22:57:35,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:57:35,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-01-29 22:57:35,565 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:57:35,637 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:57:35,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 174 flow [2024-01-29 22:57:35,705 INFO L124 PetriNetUnfolderBase]: 2/78 cut-off events. [2024-01-29 22:57:35,705 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:57:35,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 2/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 191 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2024-01-29 22:57:35,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 174 flow [2024-01-29 22:57:35,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 166 flow [2024-01-29 22:57:35,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:57:35,727 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;@155bf3b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:57:35,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-01-29 22:57:35,729 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:57:35,729 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:57:35,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:57:35,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:35,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:57:35,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:35,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash 11611, now seen corresponding path program 1 times [2024-01-29 22:57:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:35,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504670102] [2024-01-29 22:57:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:36,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504670102] [2024-01-29 22:57:36,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504670102] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:36,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:36,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:57:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940710350] [2024-01-29 22:57:36,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:36,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:57:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:57:36,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:57:36,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2024-01-29 22:57:36,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:36,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:36,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2024-01-29 22:57:36,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:36,396 INFO L124 PetriNetUnfolderBase]: 400/951 cut-off events. [2024-01-29 22:57:36,397 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-29 22:57:36,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 951 events. 400/951 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6131 event pairs, 267 based on Foata normal form. 2/646 useless extension candidates. Maximal degree in co-relation 1466. Up to 620 conditions per place. [2024-01-29 22:57:36,410 INFO L140 encePairwiseOnDemand]: 72/80 looper letters, 29 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2024-01-29 22:57:36,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 71 transitions, 216 flow [2024-01-29 22:57:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:57:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:57:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-01-29 22:57:36,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6791666666666667 [2024-01-29 22:57:36,424 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 166 flow. Second operand 3 states and 163 transitions. [2024-01-29 22:57:36,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 71 transitions, 216 flow [2024-01-29 22:57:36,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:57:36,434 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 150 flow [2024-01-29 22:57:36,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=74, PETRI_TRANSITIONS=71} [2024-01-29 22:57:36,439 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2024-01-29 22:57:36,439 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 150 flow [2024-01-29 22:57:36,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:36,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:36,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 22:57:36,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:57:36,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:36,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 360308, now seen corresponding path program 1 times [2024-01-29 22:57:36,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:36,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112603625] [2024-01-29 22:57:36,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:36,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:36,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:36,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112603625] [2024-01-29 22:57:36,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112603625] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:36,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:36,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:57:36,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134435226] [2024-01-29 22:57:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:36,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:36,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 80 [2024-01-29 22:57:36,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:36,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:36,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 80 [2024-01-29 22:57:36,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:36,752 INFO L124 PetriNetUnfolderBase]: 400/949 cut-off events. [2024-01-29 22:57:36,752 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-29 22:57:36,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 949 events. 400/949 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6128 event pairs, 267 based on Foata normal form. 1/644 useless extension candidates. Maximal degree in co-relation 1571. Up to 617 conditions per place. [2024-01-29 22:57:36,759 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 30 selfloop transitions, 3 changer transitions 0/69 dead transitions. [2024-01-29 22:57:36,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 212 flow [2024-01-29 22:57:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-01-29 22:57:36,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.596875 [2024-01-29 22:57:36,765 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 150 flow. Second operand 4 states and 191 transitions. [2024-01-29 22:57:36,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 69 transitions, 212 flow [2024-01-29 22:57:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 69 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:36,767 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 148 flow [2024-01-29 22:57:36,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-01-29 22:57:36,768 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2024-01-29 22:57:36,768 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 148 flow [2024-01-29 22:57:36,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:36,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:36,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:57:36,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:57:36,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:36,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash 346268354, now seen corresponding path program 1 times [2024-01-29 22:57:36,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:36,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549387974] [2024-01-29 22:57:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:36,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:36,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:36,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549387974] [2024-01-29 22:57:36,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549387974] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:36,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:57:36,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199005830] [2024-01-29 22:57:36,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:36,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:36,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:36,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:36,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:36,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:36,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:36,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:37,003 INFO L124 PetriNetUnfolderBase]: 412/921 cut-off events. [2024-01-29 22:57:37,003 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:57:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 921 events. 412/921 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5796 event pairs, 327 based on Foata normal form. 1/607 useless extension candidates. Maximal degree in co-relation 1589. Up to 671 conditions per place. [2024-01-29 22:57:37,010 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 32 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2024-01-29 22:57:37,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 214 flow [2024-01-29 22:57:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-01-29 22:57:37,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-01-29 22:57:37,014 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 148 flow. Second operand 4 states and 185 transitions. [2024-01-29 22:57:37,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 214 flow [2024-01-29 22:57:37,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:57:37,017 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 144 flow [2024-01-29 22:57:37,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-01-29 22:57:37,018 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -11 predicate places. [2024-01-29 22:57:37,018 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 144 flow [2024-01-29 22:57:37,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:37,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:57:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:57:37,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:37,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2144384720, now seen corresponding path program 1 times [2024-01-29 22:57:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055829389] [2024-01-29 22:57:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:37,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:37,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055829389] [2024-01-29 22:57:37,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055829389] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:37,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:37,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:37,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995214502] [2024-01-29 22:57:37,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:37,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:37,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:37,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:37,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:37,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:37,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:37,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:37,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:37,256 INFO L124 PetriNetUnfolderBase]: 592/1463 cut-off events. [2024-01-29 22:57:37,256 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:57:37,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2485 conditions, 1463 events. 592/1463 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10936 event pairs, 159 based on Foata normal form. 0/1075 useless extension candidates. Maximal degree in co-relation 2456. Up to 551 conditions per place. [2024-01-29 22:57:37,264 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 66 selfloop transitions, 6 changer transitions 0/102 dead transitions. [2024-01-29 22:57:37,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 102 transitions, 363 flow [2024-01-29 22:57:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-29 22:57:37,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.69375 [2024-01-29 22:57:37,266 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 144 flow. Second operand 4 states and 222 transitions. [2024-01-29 22:57:37,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 102 transitions, 363 flow [2024-01-29 22:57:37,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 102 transitions, 357 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:57:37,268 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 161 flow [2024-01-29 22:57:37,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-01-29 22:57:37,269 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2024-01-29 22:57:37,269 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 161 flow [2024-01-29 22:57:37,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:37,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:37,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:57:37,270 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:37,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -830574466, now seen corresponding path program 1 times [2024-01-29 22:57:37,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:37,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38934210] [2024-01-29 22:57:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:37,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:37,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38934210] [2024-01-29 22:57:37,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38934210] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:37,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:37,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:37,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674056718] [2024-01-29 22:57:37,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:37,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:37,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:37,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:37,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:37,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:37,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 68 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:37,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:37,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:37,488 INFO L124 PetriNetUnfolderBase]: 718/1657 cut-off events. [2024-01-29 22:57:37,488 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-01-29 22:57:37,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3047 conditions, 1657 events. 718/1657 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11934 event pairs, 347 based on Foata normal form. 1/1159 useless extension candidates. Maximal degree in co-relation 780. Up to 639 conditions per place. [2024-01-29 22:57:37,496 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 66 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-01-29 22:57:37,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 382 flow [2024-01-29 22:57:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-01-29 22:57:37,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.684375 [2024-01-29 22:57:37,519 INFO L175 Difference]: Start difference. First operand has 70 places, 68 transitions, 161 flow. Second operand 4 states and 219 transitions. [2024-01-29 22:57:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 382 flow [2024-01-29 22:57:37,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 101 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:57:37,521 INFO L231 Difference]: Finished difference. Result has 74 places, 68 transitions, 184 flow [2024-01-29 22:57:37,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=74, PETRI_TRANSITIONS=68} [2024-01-29 22:57:37,522 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2024-01-29 22:57:37,522 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 184 flow [2024-01-29 22:57:37,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:37,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:37,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:57:37,523 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:37,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 681868178, now seen corresponding path program 1 times [2024-01-29 22:57:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927494068] [2024-01-29 22:57:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:37,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927494068] [2024-01-29 22:57:37,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927494068] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:37,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:37,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:37,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871813727] [2024-01-29 22:57:37,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:37,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:37,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:37,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:37,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:37,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:37,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 68 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:37,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:37,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:37,780 INFO L124 PetriNetUnfolderBase]: 748/1758 cut-off events. [2024-01-29 22:57:37,780 INFO L125 PetriNetUnfolderBase]: For 263/263 co-relation queries the response was YES. [2024-01-29 22:57:37,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 1758 events. 748/1758 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12380 event pairs, 221 based on Foata normal form. 14/1373 useless extension candidates. Maximal degree in co-relation 1260. Up to 871 conditions per place. [2024-01-29 22:57:37,789 INFO L140 encePairwiseOnDemand]: 72/80 looper letters, 66 selfloop transitions, 7 changer transitions 0/101 dead transitions. [2024-01-29 22:57:37,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 101 transitions, 412 flow [2024-01-29 22:57:37,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2024-01-29 22:57:37,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.690625 [2024-01-29 22:57:37,790 INFO L175 Difference]: Start difference. First operand has 74 places, 68 transitions, 184 flow. Second operand 4 states and 221 transitions. [2024-01-29 22:57:37,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 101 transitions, 412 flow [2024-01-29 22:57:37,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 101 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:57:37,793 INFO L231 Difference]: Finished difference. Result has 77 places, 70 transitions, 222 flow [2024-01-29 22:57:37,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2024-01-29 22:57:37,794 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -5 predicate places. [2024-01-29 22:57:37,794 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 222 flow [2024-01-29 22:57:37,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:37,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:37,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:57:37,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:37,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash 79341927, now seen corresponding path program 1 times [2024-01-29 22:57:37,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327590011] [2024-01-29 22:57:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:37,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:37,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327590011] [2024-01-29 22:57:37,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327590011] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:37,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:37,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805126263] [2024-01-29 22:57:37,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:37,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:37,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:37,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:37,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:37,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:37,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:37,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:37,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:37,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:38,038 INFO L124 PetriNetUnfolderBase]: 575/1322 cut-off events. [2024-01-29 22:57:38,038 INFO L125 PetriNetUnfolderBase]: For 489/493 co-relation queries the response was YES. [2024-01-29 22:57:38,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 1322 events. 575/1322 cut-off events. For 489/493 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8532 event pairs, 130 based on Foata normal form. 184/1326 useless extension candidates. Maximal degree in co-relation 1026. Up to 943 conditions per place. [2024-01-29 22:57:38,044 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 46 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2024-01-29 22:57:38,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 335 flow [2024-01-29 22:57:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2024-01-29 22:57:38,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.615625 [2024-01-29 22:57:38,046 INFO L175 Difference]: Start difference. First operand has 77 places, 70 transitions, 222 flow. Second operand 4 states and 197 transitions. [2024-01-29 22:57:38,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 335 flow [2024-01-29 22:57:38,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:57:38,050 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 202 flow [2024-01-29 22:57:38,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-01-29 22:57:38,051 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2024-01-29 22:57:38,053 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 202 flow [2024-01-29 22:57:38,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:38,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:38,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:38,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:57:38,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:38,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:38,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1063040316, now seen corresponding path program 1 times [2024-01-29 22:57:38,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:38,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121450973] [2024-01-29 22:57:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:38,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:38,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121450973] [2024-01-29 22:57:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121450973] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:38,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185393674] [2024-01-29 22:57:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:38,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:38,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:38,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-29 22:57:38,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:38,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:38,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-29 22:57:38,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:38,291 INFO L124 PetriNetUnfolderBase]: 475/1016 cut-off events. [2024-01-29 22:57:38,292 INFO L125 PetriNetUnfolderBase]: For 576/589 co-relation queries the response was YES. [2024-01-29 22:57:38,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 1016 events. 475/1016 cut-off events. For 576/589 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5798 event pairs, 120 based on Foata normal form. 188/1173 useless extension candidates. Maximal degree in co-relation 2268. Up to 738 conditions per place. [2024-01-29 22:57:38,296 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 49 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-29 22:57:38,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 347 flow [2024-01-29 22:57:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:38,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-01-29 22:57:38,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-01-29 22:57:38,298 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 202 flow. Second operand 4 states and 201 transitions. [2024-01-29 22:57:38,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 347 flow [2024-01-29 22:57:38,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:38,300 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 185 flow [2024-01-29 22:57:38,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-01-29 22:57:38,300 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -20 predicate places. [2024-01-29 22:57:38,301 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 185 flow [2024-01-29 22:57:38,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:57:38,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:38,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:38,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:57:38,301 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-29 22:57:38,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1443749632, now seen corresponding path program 1 times [2024-01-29 22:57:38,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:38,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156221625] [2024-01-29 22:57:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:38,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:38,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:57:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:38,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:57:38,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:57:38,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 59 remaining) [2024-01-29 22:57:38,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 59 remaining) [2024-01-29 22:57:38,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 59 remaining) [2024-01-29 22:57:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 59 remaining) [2024-01-29 22:57:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 59 remaining) [2024-01-29 22:57:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 59 remaining) [2024-01-29 22:57:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 59 remaining) [2024-01-29 22:57:38,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 59 remaining) [2024-01-29 22:57:38,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 59 remaining) [2024-01-29 22:57:38,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 59 remaining) [2024-01-29 22:57:38,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 59 remaining) [2024-01-29 22:57:38,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 59 remaining) [2024-01-29 22:57:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 59 remaining) [2024-01-29 22:57:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 59 remaining) [2024-01-29 22:57:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 59 remaining) [2024-01-29 22:57:38,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 59 remaining) [2024-01-29 22:57:38,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 59 remaining) [2024-01-29 22:57:38,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 59 remaining) [2024-01-29 22:57:38,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 59 remaining) [2024-01-29 22:57:38,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (24 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 59 remaining) [2024-01-29 22:57:38,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 59 remaining) [2024-01-29 22:57:38,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 59 remaining) [2024-01-29 22:57:38,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 59 remaining) [2024-01-29 22:57:38,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 59 remaining) [2024-01-29 22:57:38,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 59 remaining) [2024-01-29 22:57:38,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 59 remaining) [2024-01-29 22:57:38,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 59 remaining) [2024-01-29 22:57:38,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:57:38,368 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:38,374 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:57:38,374 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:57:38,401 INFO L503 ceAbstractionStarter]: Automizer considered 33 witness invariants [2024-01-29 22:57:38,401 INFO L504 ceAbstractionStarter]: WitnessConsidered=33 [2024-01-29 22:57:38,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:57:38 BasicIcfg [2024-01-29 22:57:38,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:57:38,405 INFO L158 Benchmark]: Toolchain (without parser) took 3807.57ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 99.4MB in the beginning and 76.1MB in the end (delta: 23.3MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,405 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:38,406 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:38,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.66ms. Allocated memory is still 172.0MB. Free memory was 99.1MB in the beginning and 133.4MB in the end (delta: -34.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.94ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,407 INFO L158 Benchmark]: Boogie Preprocessor took 34.43ms. Allocated memory is still 172.0MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,407 INFO L158 Benchmark]: RCFGBuilder took 619.04ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 94.3MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,408 INFO L158 Benchmark]: TraceAbstraction took 2861.22ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 93.5MB in the beginning and 76.1MB in the end (delta: 17.4MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2024-01-29 22:57:38,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.66ms. Allocated memory is still 172.0MB. Free memory was 99.1MB in the beginning and 133.4MB in the end (delta: -34.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.94ms. Allocated memory is still 172.0MB. Free memory was 133.4MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.43ms. Allocated memory is still 172.0MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 619.04ms. Allocated memory is still 172.0MB. Free memory was 129.3MB in the beginning and 94.3MB in the end (delta: 35.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2861.22ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 93.5MB in the beginning and 76.1MB in the end (delta: 17.4MB). Peak memory consumption was 78.2MB. 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: [L37] 0 unsigned int pos, i1, i2, N; [L70] 0 pthread_t t1, t2; VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]]] [L73] 0 pos = __VERIFIER_nondet_uint() [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]]] VAL [N=0, i1=0, i2=0, t1={3:0}, t2={5:0}] [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, t1={3:0}, t2={5:0}] [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]]] [L74] 0 i1 = __VERIFIER_nondet_uint() [L75] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]] VAL [N=0, i2=0, t1={3:0}, t2={5:0}] [L75] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]]] [L75] 0 i2 = __VERIFIER_nondet_uint() [L76] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] [L76] 0 N = __VERIFIER_nondet_uint() [L79] CALL 0 assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L34] COND FALSE 0 !(!cond) [L79] RET 0 assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L81] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L40] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L40] COND TRUE 1 ( i1 < ( 2 * N ) ) VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 pos++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]]] VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=1] - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 41]: 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: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: 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: 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: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: 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: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 59]: 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: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 81]: 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: 82]: 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 5 procedures, 128 locations, 59 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: 2.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 787 IncrementalHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 44 mSDtfsCounter, 787 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=6, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 22:57:38,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE