./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_41-threadenter-no-locals_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_41-threadenter-no-locals_unknown_1_neg.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-958ec4d-m [2024-02-07 14:55:06,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:55:06,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:55:06,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:55:06,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:55:06,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:55:06,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:55:06,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:55:06,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:55:06,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:55:06,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:55:06,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:55:06,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:55:06,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:55:06,554 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:55:06,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:55:06,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:55:06,555 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:55:06,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:55:06,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:55:06,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:55:06,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:55:06,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:55:06,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:55:06,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:55:06,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:55:06,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:55:06,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:55:06,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:55:06,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:55:06,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:55:06,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:55:06,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:55:06,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:55:06,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:55:06,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:55:06,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:55:06,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:55:06,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:55:06,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:55:06,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:55:06,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:55:06,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:55:06,563 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:55:06,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:55:06,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:55:06,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:55:06,829 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:55:06,830 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:55:06,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2024-02-07 14:55:08,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:55:08,317 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:55:08,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2024-02-07 14:55:08,337 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac90615de/1a868dbd41364b9d9dc59b2523c4850f/FLAG82fc3e792 [2024-02-07 14:55:08,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac90615de/1a868dbd41364b9d9dc59b2523c4850f [2024-02-07 14:55:08,356 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:55:08,357 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:55:08,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_41-threadenter-no-locals_unknown_1_neg.yml/witness.yml [2024-02-07 14:55:08,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:55:08,417 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:55:08,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:55:08,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:55:08,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:55:08,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:55:08" (1/2) ... [2024-02-07 14:55:08,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2410b05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:55:08" (1/2) ... [2024-02-07 14:55:08,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72dd8669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:08" (2/2) ... [2024-02-07 14:55:08,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2410b05f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:08" (2/2) ... [2024-02-07 14:55:08,425 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:55:08,444 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:55:08,445 INFO L76 edCorrectnessWitness]: Location invariant before [L690-L690] (3 == x) && (x == 3) [2024-02-07 14:55:08,445 INFO L76 edCorrectnessWitness]: Location invariant before [L691-L691] 3 == x [2024-02-07 14:55:08,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:55:08,707 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2024-02-07 14:55:08,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:08,832 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:55:08,844 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] Start Parsing Local Start Parsing Local [2024-02-07 14:55:08,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:08,914 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:55:08,916 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08 WrapperNode [2024-02-07 14:55:08,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:55:08,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:08,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:55:08,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:55:08,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,950 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2024-02-07 14:55:08,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:08,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:55:08,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:55:08,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:55:08,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,987 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-02-07 14:55:08,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:09,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:09,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:09,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:55:09,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:55:09,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:55:09,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:55:09,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:09,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:55:09,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:55:09,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:55:09,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:55:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:55:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:55:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:55:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:55:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:55:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:55:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:55:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:55:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:55:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:55:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:55:09,104 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:55:09,224 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:55:09,226 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:55:09,335 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:55:09,336 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:55:09,402 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:55:09,410 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:55:09,411 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:09 BoogieIcfgContainer [2024-02-07 14:55:09,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:55:09,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:55:09,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:55:09,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:55:09,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:55:08" (1/4) ... [2024-02-07 14:55:09,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbb806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:08" (2/4) ... [2024-02-07 14:55:09,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbb806 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08" (3/4) ... [2024-02-07 14:55:09,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbb806 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:09" (4/4) ... [2024-02-07 14:55:09,420 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2024-02-07 14:55:09,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:55:09,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-02-07 14:55:09,433 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:55:09,473 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:55:09,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 14 transitions, 32 flow [2024-02-07 14:55:09,531 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-02-07 14:55:09,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 13 events. 1/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 14 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2024-02-07 14:55:09,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 14 transitions, 32 flow [2024-02-07 14:55:09,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 13 transitions, 29 flow [2024-02-07 14:55:09,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:55:09,560 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;@6990f733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:55:09,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-02-07 14:55:09,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:55:09,567 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:55:09,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:09,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:55:09,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-02-07 14:55:09,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:09,572 INFO L85 PathProgramCache]: Analyzing trace with hash 3771, now seen corresponding path program 1 times [2024-02-07 14:55:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836737723] [2024-02-07 14:55:09,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:09,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836737723] [2024-02-07 14:55:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836737723] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:55:09,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287952049] [2024-02-07 14:55:09,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:09,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:09,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:09,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:09,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 14 [2024-02-07 14:55:09,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:09,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:09,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 14 [2024-02-07 14:55:09,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:09,798 INFO L124 PetriNetUnfolderBase]: 4/21 cut-off events. [2024-02-07 14:55:09,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 21 events. 4/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 40 event pairs, 2 based on Foata normal form. 3/22 useless extension candidates. Maximal degree in co-relation 30. Up to 10 conditions per place. [2024-02-07 14:55:09,800 INFO L140 encePairwiseOnDemand]: 9/14 looper letters, 5 selfloop transitions, 2 changer transitions 2/12 dead transitions. [2024-02-07 14:55:09,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 45 flow [2024-02-07 14:55:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2024-02-07 14:55:09,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-02-07 14:55:09,811 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 3 states and 25 transitions. [2024-02-07 14:55:09,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 45 flow [2024-02-07 14:55:09,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 12 transitions, 44 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:09,815 INFO L231 Difference]: Finished difference. Result has 15 places, 9 transitions, 24 flow [2024-02-07 14:55:09,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=14, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=24, PETRI_PLACES=15, PETRI_TRANSITIONS=9} [2024-02-07 14:55:09,818 INFO L281 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2024-02-07 14:55:09,819 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 9 transitions, 24 flow [2024-02-07 14:55:09,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:09,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:09,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:55:09,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:55:09,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-02-07 14:55:09,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:09,820 INFO L85 PathProgramCache]: Analyzing trace with hash -808374601, now seen corresponding path program 1 times [2024-02-07 14:55:09,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:09,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527977350] [2024-02-07 14:55:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:09,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:55:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:09,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:55:09,865 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:55:09,867 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-02-07 14:55:09,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-02-07 14:55:09,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-02-07 14:55:09,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-02-07 14:55:09,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-02-07 14:55:09,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:55:09,869 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-02-07 14:55:09,873 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:55:09,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:55:09,894 INFO L503 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-02-07 14:55:09,894 INFO L504 ceAbstractionStarter]: WitnessConsidered=2 [2024-02-07 14:55:09,894 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:55:09 BasicIcfg [2024-02-07 14:55:09,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:55:09,895 INFO L158 Benchmark]: Toolchain (without parser) took 1478.40ms. Allocated memory is still 190.8MB. Free memory was 119.1MB in the beginning and 90.8MB in the end (delta: 28.4MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,895 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 92.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,896 INFO L158 Benchmark]: Witness Parser took 0.45ms. Allocated memory is still 190.8MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:09,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.52ms. Allocated memory is still 190.8MB. Free memory was 118.7MB in the beginning and 140.2MB in the end (delta: -21.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.03ms. Allocated memory is still 190.8MB. Free memory was 140.2MB in the beginning and 138.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,897 INFO L158 Benchmark]: Boogie Preprocessor took 58.79ms. Allocated memory is still 190.8MB. Free memory was 138.0MB in the beginning and 136.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,897 INFO L158 Benchmark]: RCFGBuilder took 402.11ms. Allocated memory is still 190.8MB. Free memory was 136.0MB in the beginning and 121.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,898 INFO L158 Benchmark]: TraceAbstraction took 481.14ms. Allocated memory is still 190.8MB. Free memory was 120.1MB in the beginning and 90.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-02-07 14:55:09,899 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 92.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Parser took 0.45ms. Allocated memory is still 190.8MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.52ms. Allocated memory is still 190.8MB. Free memory was 118.7MB in the beginning and 140.2MB in the end (delta: -21.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.03ms. Allocated memory is still 190.8MB. Free memory was 140.2MB in the beginning and 138.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.79ms. Allocated memory is still 190.8MB. Free memory was 138.0MB in the beginning and 136.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.11ms. Allocated memory is still 190.8MB. Free memory was 136.0MB in the beginning and 121.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 481.14ms. Allocated memory is still 190.8MB. Free memory was 120.1MB in the beginning and 90.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[3],IdentifierExpression[x]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[3]]]]] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: 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 3 procedures, 21 locations, 5 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: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2024-02-07 14:55:09,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE