./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 cb09d658 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-cb09d65-m [2024-01-27 23:08:51,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:08:51,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:08:51,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:08:51,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:08:51,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:08:51,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:08:51,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:08:51,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:08:51,562 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:08:51,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:08:51,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:08:51,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:08:51,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:08:51,565 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:08:51,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:08:51,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:08:51,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:08:51,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:08:51,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:08:51,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:08:51,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:08:51,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:08:51,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:08:51,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:08:51,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:08:51,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:08:51,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:08:51,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:08:51,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:08:51,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:08:51,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:08:51,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:51,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:08:51,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:08:51,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:08:51,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:08:51,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:08:51,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:08:51,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:08:51,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:08:51,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:08:51,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:08:51,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:08:51,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:08:51,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:08:51,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:08:51,852 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:08:51,853 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:08:51,854 INFO L431 ainManager$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 [2024-01-27 23:08:51,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:08:51,948 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:08:51,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-27 23:08:52,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:08:53,106 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:08:53,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-27 23:08:53,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9a6c6cb/b7d8564639bb4a1ea889e3bf9a1b85c0/FLAG30a12fb99 [2024-01-27 23:08:53,513 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab9a6c6cb/b7d8564639bb4a1ea889e3bf9a1b85c0 [2024-01-27 23:08:53,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:08:53,515 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:08:53,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:53,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:08:53,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:08:53,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:51" (1/2) ... [2024-01-27 23:08:53,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb98907 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:53, skipping insertion in model container [2024-01-27 23:08:53,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:51" (1/2) ... [2024-01-27 23:08:53,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7bd60de5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:53, skipping insertion in model container [2024-01-27 23:08:53,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:53" (2/2) ... [2024-01-27 23:08:53,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb98907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53, skipping insertion in model container [2024-01-27 23:08:53,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:53" (2/2) ... [2024-01-27 23:08:53,525 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:08:53,536 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] N == 0U [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] i2 == 0U [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] N == 0U [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] i1 == 0U [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Loop invariant at [L40-L49] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,537 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] N == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] i2 == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] pos == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] i1 == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] N == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] i2 == 0U [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,538 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] N == 0U [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Loop invariant at [L55-L64] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,539 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 23:08:53,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:08:53,711 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] [2024-01-27 23:08:53,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:53,721 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 [2024-01-27 23:08:53,763 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] [2024-01-27 23:08:53,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:53,779 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:08:53,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53 WrapperNode [2024-01-27 23:08:53,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:53,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:53,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:08:53,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:08:53,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,817 INFO L138 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-01-27 23:08:53,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:53,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:08:53,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:08:53,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:08:53,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,847 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]. [2024-01-27 23:08:53,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:08:53,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:08:53,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:08:53,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:08:53,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (1/1) ... [2024-01-27 23:08:53,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:53,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:08:53,911 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) [2024-01-27 23:08:53,932 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 [2024-01-27 23:08:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:08:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:08:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:08:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:08:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:08:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:08:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 23:08:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 23:08:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:08:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:08:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:08:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:08:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:08:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:08:53,946 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:08:54,022 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:08:54,024 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:08:54,239 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:08:54,240 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:08:54,351 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:08:54,352 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-27 23:08:54,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:54 BoogieIcfgContainer [2024-01-27 23:08:54,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:08:54,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:08:54,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:08:54,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:08:54,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:51" (1/4) ... [2024-01-27 23:08:54,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35c14a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:08:54, skipping insertion in model container [2024-01-27 23:08:54,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:08:53" (2/4) ... [2024-01-27 23:08:54,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:54, skipping insertion in model container [2024-01-27 23:08:54,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:53" (3/4) ... [2024-01-27 23:08:54,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a35c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:54, skipping insertion in model container [2024-01-27 23:08:54,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:54" (4/4) ... [2024-01-27 23:08:54,365 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-01-27 23:08:54,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:08:54,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-01-27 23:08:54,378 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:08:54,423 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 23:08:54,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 174 flow [2024-01-27 23:08:54,482 INFO L124 PetriNetUnfolderBase]: 2/78 cut-off events. [2024-01-27 23:08:54,483 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:08:54,486 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. [2024-01-27 23:08:54,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 174 flow [2024-01-27 23:08:54,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 166 flow [2024-01-27 23:08:54,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:08:54,501 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;@3eddcc45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:08:54,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-01-27 23:08:54,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:08:54,503 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:08:54,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:08:54,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:54,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:08:54,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:54,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 11611, now seen corresponding path program 1 times [2024-01-27 23:08:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310522441] [2024-01-27 23:08:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:54,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:54,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:54,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310522441] [2024-01-27 23:08:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310522441] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:54,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:54,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:54,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256281143] [2024-01-27 23:08:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:54,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:54,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:54,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 80 [2024-01-27 23:08:54,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:54,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:54,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 80 [2024-01-27 23:08:54,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:54,980 INFO L124 PetriNetUnfolderBase]: 400/951 cut-off events. [2024-01-27 23:08:54,981 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-27 23:08:54,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 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 6119 event pairs, 267 based on Foata normal form. 2/645 useless extension candidates. Maximal degree in co-relation 1466. Up to 618 conditions per place. [2024-01-27 23:08:54,992 INFO L140 encePairwiseOnDemand]: 72/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2024-01-27 23:08:54,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 71 transitions, 214 flow [2024-01-27 23:08:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:54,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-01-27 23:08:55,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-01-27 23:08:55,006 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 166 flow. Second operand 3 states and 165 transitions. [2024-01-27 23:08:55,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 71 transitions, 214 flow [2024-01-27 23:08:55,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 23:08:55,016 INFO L231 Difference]: Finished difference. Result has 74 places, 71 transitions, 150 flow [2024-01-27 23:08:55,018 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} [2024-01-27 23:08:55,020 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -8 predicate places. [2024-01-27 23:08:55,021 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 71 transitions, 150 flow [2024-01-27 23:08:55,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:55,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:08:55,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:08:55,022 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,024 INFO L85 PathProgramCache]: Analyzing trace with hash 360308, now seen corresponding path program 1 times [2024-01-27 23:08:55,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126956352] [2024-01-27 23:08:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:55,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:55,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126956352] [2024-01-27 23:08:55,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126956352] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:55,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:55,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:55,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589213755] [2024-01-27 23:08:55,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:55,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:55,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:55,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 80 [2024-01-27 23:08:55,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-01-27 23:08:55,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:55,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 80 [2024-01-27 23:08:55,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:55,233 INFO L124 PetriNetUnfolderBase]: 400/950 cut-off events. [2024-01-27 23:08:55,234 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 23:08:55,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 950 events. 400/950 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6110 event pairs, 267 based on Foata normal form. 1/644 useless extension candidates. Maximal degree in co-relation 1565. Up to 619 conditions per place. [2024-01-27 23:08:55,238 INFO L140 encePairwiseOnDemand]: 77/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-01-27 23:08:55,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 70 transitions, 208 flow [2024-01-27 23:08:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-01-27 23:08:55,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6791666666666667 [2024-01-27 23:08:55,245 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 150 flow. Second operand 3 states and 163 transitions. [2024-01-27 23:08:55,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 70 transitions, 208 flow [2024-01-27 23:08:55,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:55,247 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 148 flow [2024-01-27 23:08:55,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2024-01-27 23:08:55,247 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2024-01-27 23:08:55,247 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 148 flow [2024-01-27 23:08:55,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-01-27 23:08:55,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:08:55,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:08:55,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash 11169935, now seen corresponding path program 1 times [2024-01-27 23:08:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241027105] [2024-01-27 23:08:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:55,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:55,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241027105] [2024-01-27 23:08:55,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241027105] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:55,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:55,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:55,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429542958] [2024-01-27 23:08:55,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:55,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:55,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:55,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:55,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:55,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2024-01-27 23:08:55,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 148 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) [2024-01-27 23:08:55,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:55,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2024-01-27 23:08:55,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:55,388 INFO L124 PetriNetUnfolderBase]: 400/947 cut-off events. [2024-01-27 23:08:55,388 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 23:08:55,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 947 events. 400/947 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6096 event pairs, 267 based on Foata normal form. 2/644 useless extension candidates. Maximal degree in co-relation 1569. Up to 617 conditions per place. [2024-01-27 23:08:55,393 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-27 23:08:55,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 202 flow [2024-01-27 23:08:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2024-01-27 23:08:55,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6625 [2024-01-27 23:08:55,395 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 148 flow. Second operand 3 states and 159 transitions. [2024-01-27 23:08:55,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 202 flow [2024-01-27 23:08:55,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:55,396 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 142 flow [2024-01-27 23:08:55,396 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-01-27 23:08:55,397 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2024-01-27 23:08:55,397 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 142 flow [2024-01-27 23:08:55,397 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) [2024-01-27 23:08:55,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:08:55,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:08:55,397 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,398 INFO L85 PathProgramCache]: Analyzing trace with hash 346268354, now seen corresponding path program 1 times [2024-01-27 23:08:55,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961407984] [2024-01-27 23:08:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:55,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:55,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961407984] [2024-01-27 23:08:55,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961407984] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:55,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:55,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:55,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390829447] [2024-01-27 23:08:55,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:55,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:55,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:55,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 80 [2024-01-27 23:08:55,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-01-27 23:08:55,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:55,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 80 [2024-01-27 23:08:55,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:55,549 INFO L124 PetriNetUnfolderBase]: 412/917 cut-off events. [2024-01-27 23:08:55,550 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 23:08:55,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 917 events. 412/917 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5771 event pairs, 327 based on Foata normal form. 2/606 useless extension candidates. Maximal degree in co-relation 1589. Up to 671 conditions per place. [2024-01-27 23:08:55,554 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 30 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-01-27 23:08:55,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 63 transitions, 198 flow [2024-01-27 23:08:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-01-27 23:08:55,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6375 [2024-01-27 23:08:55,555 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 142 flow. Second operand 3 states and 153 transitions. [2024-01-27 23:08:55,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 63 transitions, 198 flow [2024-01-27 23:08:55,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:55,559 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 134 flow [2024-01-27 23:08:55,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-01-27 23:08:55,560 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2024-01-27 23:08:55,560 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 134 flow [2024-01-27 23:08:55,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-01-27 23:08:55,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:55,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:08:55,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash 79341927, now seen corresponding path program 1 times [2024-01-27 23:08:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619838725] [2024-01-27 23:08:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:55,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:55,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619838725] [2024-01-27 23:08:55,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619838725] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:55,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:08:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310143202] [2024-01-27 23:08:55,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:55,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:08:55,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:08:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:08:55,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-27 23:08:55,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 134 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) [2024-01-27 23:08:55,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:55,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-27 23:08:55,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:55,763 INFO L124 PetriNetUnfolderBase]: 294/606 cut-off events. [2024-01-27 23:08:55,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:08:55,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 606 events. 294/606 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3349 event pairs, 8 based on Foata normal form. 80/600 useless extension candidates. Maximal degree in co-relation 1078. Up to 442 conditions per place. [2024-01-27 23:08:55,766 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 38 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-01-27 23:08:55,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 219 flow [2024-01-27 23:08:55,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:08:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:08:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2024-01-27 23:08:55,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.615625 [2024-01-27 23:08:55,767 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 134 flow. Second operand 4 states and 197 transitions. [2024-01-27 23:08:55,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 219 flow [2024-01-27 23:08:55,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 65 transitions, 215 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:55,769 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 116 flow [2024-01-27 23:08:55,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-01-27 23:08:55,769 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -24 predicate places. [2024-01-27 23:08:55,769 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 116 flow [2024-01-27 23:08:55,770 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) [2024-01-27 23:08:55,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:55,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:08:55,770 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1063040316, now seen corresponding path program 1 times [2024-01-27 23:08:55,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677004721] [2024-01-27 23:08:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:55,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677004721] [2024-01-27 23:08:55,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677004721] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:55,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:55,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:08:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023421372] [2024-01-27 23:08:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:55,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:08:55,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:55,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:08:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:08:55,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-27 23:08:55,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 116 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) [2024-01-27 23:08:55,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:55,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-27 23:08:55,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:55,991 INFO L124 PetriNetUnfolderBase]: 269/566 cut-off events. [2024-01-27 23:08:55,991 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-27 23:08:55,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 566 events. 269/566 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2780 event pairs, 67 based on Foata normal form. 80/601 useless extension candidates. Maximal degree in co-relation 982. Up to 358 conditions per place. [2024-01-27 23:08:55,993 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-27 23:08:55,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 62 transitions, 221 flow [2024-01-27 23:08:55,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:08:55,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:08:55,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-01-27 23:08:55,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-01-27 23:08:55,995 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 116 flow. Second operand 4 states and 201 transitions. [2024-01-27 23:08:55,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 62 transitions, 221 flow [2024-01-27 23:08:55,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 62 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:55,996 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 99 flow [2024-01-27 23:08:55,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-01-27 23:08:55,996 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -32 predicate places. [2024-01-27 23:08:55,996 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 99 flow [2024-01-27 23:08:55,997 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) [2024-01-27 23:08:55,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:55,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:55,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:08:55,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 23:08:55,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1443749632, now seen corresponding path program 1 times [2024-01-27 23:08:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:55,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963407698] [2024-01-27 23:08:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:56,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:08:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:56,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:08:56,029 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:08:56,030 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 59 remaining) [2024-01-27 23:08:56,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 59 remaining) [2024-01-27 23:08:56,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 59 remaining) [2024-01-27 23:08:56,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (24 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2024-01-27 23:08:56,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 59 remaining) [2024-01-27 23:08:56,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 59 remaining) [2024-01-27 23:08:56,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 59 remaining) [2024-01-27 23:08:56,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 59 remaining) [2024-01-27 23:08:56,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 23:08:56,037 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:56,041 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:08:56,041 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:08:56,058 INFO L503 ceAbstractionStarter]: Automizer considered 33 witness invariants [2024-01-27 23:08:56,058 INFO L504 ceAbstractionStarter]: WitnessConsidered=33 [2024-01-27 23:08:56,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:08:56 BasicIcfg [2024-01-27 23:08:56,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:08:56,059 INFO L158 Benchmark]: Toolchain (without parser) took 2544.80ms. Allocated memory was 119.5MB in the beginning and 197.1MB in the end (delta: 77.6MB). Free memory was 62.5MB in the beginning and 132.1MB in the end (delta: -69.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-01-27 23:08:56,059 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:56,060 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:56,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.82ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 62.5MB in the beginning and 125.7MB in the end (delta: -63.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-01-27 23:08:56,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.76ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:08:56,060 INFO L158 Benchmark]: Boogie Preprocessor took 59.73ms. Allocated memory is still 163.6MB. Free memory was 123.6MB in the beginning and 121.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:08:56,060 INFO L158 Benchmark]: RCFGBuilder took 473.66ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 87.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-27 23:08:56,061 INFO L158 Benchmark]: TraceAbstraction took 1701.80ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 86.9MB in the beginning and 132.1MB in the end (delta: -45.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:56,062 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 0.14ms. Allocated memory is still 119.5MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.82ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 62.5MB in the beginning and 125.7MB in the end (delta: -63.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.76ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.73ms. Allocated memory is still 163.6MB. Free memory was 123.6MB in the beginning and 121.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.66ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 87.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1701.80ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 86.9MB in the beginning and 132.1MB in the end (delta: -45.2MB). There was no memory consumed. 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[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[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[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[N],IntegerLiteral[0U]]]] [L73] 0 pos = __VERIFIER_nondet_uint() [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[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, t1={3:0}, t2={5:0}] [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i2],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[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[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] 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: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 36 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-01-27 23:08:56,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE