./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_19-publish-precision_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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/13-privatized_19-publish-precision_unknown_1_neg.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_19-publish-precision_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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 22:51:26,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 22:51:26,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 22:51:26,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 22:51:26,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 22:51:26,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 22:51:26,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 22:51:26,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 22:51:26,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 22:51:26,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 22:51:26,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 22:51:26,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 22:51:26,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 22:51:26,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 22:51:26,128 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 22:51:26,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 22:51:26,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 22:51:26,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 22:51:26,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 22:51:26,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 22:51:26,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 22:51:26,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 22:51:26,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 22:51:26,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 22:51:26,132 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 22:51:26,132 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 22:51:26,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 22:51:26,133 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 22:51:26,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 22:51:26,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 22:51:26,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 22:51:26,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 22:51:26,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:51:26,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 22:51:26,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 22:51:26,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 22:51:26,136 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 22:51:26,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 22:51:26,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 22:51:26,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 22:51:26,137 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 22:51:26,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 22:51:26,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 22:51:26,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 22:51:26,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 22:51:26,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 22:51:26,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 22:51:26,465 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 22:51:26,466 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 22:51:26,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_19-publish-precision_unknown_1_neg.yml/witness.yml [2024-06-03 22:51:26,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 22:51:26,606 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 22:51:26,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-03 22:51:27,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 22:51:27,981 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 22:51:27,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-03 22:51:28,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dac3a63c/47bbda81b5324c38827322f732eae470/FLAG04a8ba744 [2024-06-03 22:51:28,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dac3a63c/47bbda81b5324c38827322f732eae470 [2024-06-03 22:51:28,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 22:51:28,015 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 22:51:28,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 22:51:28,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 22:51:28,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 22:51:28,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:26" (1/2) ... [2024-06-03 22:51:28,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f46fe4d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:51:28, skipping insertion in model container [2024-06-03 22:51:28,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:26" (1/2) ... [2024-06-03 22:51:28,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@469eb355 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 10:51:28, skipping insertion in model container [2024-06-03 22:51:28,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:51:28" (2/2) ... [2024-06-03 22:51:28,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f46fe4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28, skipping insertion in model container [2024-06-03 22:51:28,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 10:51:28" (2/2) ... [2024-06-03 22:51:28,025 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 22:51:28,082 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 22:51:28,083 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ((! multithreaded || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))) && (! multithreaded || (mutex2_locked || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5))))) && (! multithreaded || (mutex1_locked || glob1 == 0)) [2024-06-03 22:51:28,083 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-03 22:51:28,084 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 22:51:28,084 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-03 22:51:28,084 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-06-03 22:51:28,085 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-03 22:51:28,085 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-03 22:51:28,085 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-06-03 22:51:28,085 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-06-03 22:51:28,094 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-06-03 22:51:28,094 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-06-03 22:51:28,094 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-06-03 22:51:28,095 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-06-03 22:51:28,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 22:51:28,428 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:51:28,439 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 [2024-06-03 22:51:28,542 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 22:51:28,586 INFO L206 MainTranslator]: Completed translation [2024-06-03 22:51:28,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28 WrapperNode [2024-06-03 22:51:28,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 22:51:28,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 22:51:28,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 22:51:28,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 22:51:28,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,649 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-06-03 22:51:28,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 22:51:28,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 22:51:28,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 22:51:28,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 22:51:28,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,692 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-03 22:51:28,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 22:51:28,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 22:51:28,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 22:51:28,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 22:51:28,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (1/1) ... [2024-06-03 22:51:28,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 22:51:28,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 22:51:28,761 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) [2024-06-03 22:51:28,771 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 [2024-06-03 22:51:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-03 22:51:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 22:51:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-03 22:51:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-03 22:51:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 22:51:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 22:51:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-03 22:51:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-03 22:51:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 22:51:28,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 22:51:28,797 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 22:51:28,912 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 22:51:28,914 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 22:51:29,055 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 22:51:29,055 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 22:51:29,214 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 22:51:29,216 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 22:51:29,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:51:29 BoogieIcfgContainer [2024-06-03 22:51:29,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 22:51:29,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 22:51:29,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 22:51:29,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 22:51:29,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 10:51:26" (1/4) ... [2024-06-03 22:51:29,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cc209e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 10:51:28" (2/4) ... [2024-06-03 22:51:29,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cc209e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 10:51:28" (3/4) ... [2024-06-03 22:51:29,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cc209e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 10:51:29, skipping insertion in model container [2024-06-03 22:51:29,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 10:51:29" (4/4) ... [2024-06-03 22:51:29,226 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-03 22:51:29,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 22:51:29,239 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-03 22:51:29,239 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 22:51:29,267 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-03 22:51:29,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 27 transitions, 61 flow [2024-06-03 22:51:29,318 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-06-03 22:51:29,322 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-03 22:51:29,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 26 events. 0/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-03 22:51:29,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 27 transitions, 61 flow [2024-06-03 22:51:29,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2024-06-03 22:51:29,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 22:51:29,340 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;@23ecef54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 22:51:29,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-03 22:51:29,345 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 22:51:29,345 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 22:51:29,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:51:29,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:29,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 22:51:29,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:29,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:29,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2139501867, now seen corresponding path program 1 times [2024-06-03 22:51:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856010005] [2024-06-03 22:51:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:29,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:29,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:29,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856010005] [2024-06-03 22:51:29,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856010005] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:29,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:29,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 22:51:29,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675056893] [2024-06-03 22:51:29,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:29,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 22:51:29,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 22:51:29,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 22:51:29,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-03 22:51:29,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-03 22:51:29,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:29,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-03 22:51:29,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:29,946 INFO L124 PetriNetUnfolderBase]: 11/48 cut-off events. [2024-06-03 22:51:29,946 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 22:51:29,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 48 events. 11/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 8 based on Foata normal form. 7/53 useless extension candidates. Maximal degree in co-relation 81. Up to 27 conditions per place. [2024-06-03 22:51:29,949 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 13 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-03 22:51:29,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 75 flow [2024-06-03 22:51:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 22:51:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 22:51:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-03 22:51:29,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2024-06-03 22:51:29,962 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 38 transitions. [2024-06-03 22:51:29,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 75 flow [2024-06-03 22:51:29,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 22:51:29,968 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2024-06-03 22:51:29,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-06-03 22:51:29,976 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2024-06-03 22:51:29,976 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2024-06-03 22:51:29,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-06-03 22:51:29,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:29,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:51:29,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 22:51:29,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:29,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:29,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1651174440, now seen corresponding path program 1 times [2024-06-03 22:51:29,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:29,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913661458] [2024-06-03 22:51:29,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:29,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:30,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:30,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913661458] [2024-06-03 22:51:30,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913661458] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:30,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:30,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-03 22:51:30,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653040306] [2024-06-03 22:51:30,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:30,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-03 22:51:30,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-03 22:51:30,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-03 22:51:30,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-03 22:51:30,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-03 22:51:30,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:30,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-03 22:51:30,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:30,309 INFO L124 PetriNetUnfolderBase]: 10/47 cut-off events. [2024-06-03 22:51:30,309 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-03 22:51:30,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 47 events. 10/47 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 2 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 87. Up to 14 conditions per place. [2024-06-03 22:51:30,310 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 12 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2024-06-03 22:51:30,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 99 flow [2024-06-03 22:51:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-03 22:51:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-03 22:51:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2024-06-03 22:51:30,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-06-03 22:51:30,312 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 5 states and 55 transitions. [2024-06-03 22:51:30,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 99 flow [2024-06-03 22:51:30,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 22:51:30,315 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 63 flow [2024-06-03 22:51:30,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2024-06-03 22:51:30,316 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2024-06-03 22:51:30,317 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 63 flow [2024-06-03 22:51:30,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2024-06-03 22:51:30,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 22:51:30,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 22:51:30,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 22:51:30,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 22:51:30,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 22:51:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -126264686, now seen corresponding path program 1 times [2024-06-03 22:51:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 22:51:30,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35273278] [2024-06-03 22:51:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 22:51:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 22:51:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 22:51:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 22:51:30,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 22:51:30,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35273278] [2024-06-03 22:51:30,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35273278] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 22:51:30,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 22:51:30,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 22:51:30,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074483152] [2024-06-03 22:51:30,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 22:51:30,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 22:51:30,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 22:51:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 22:51:30,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-03 22:51:30,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-03 22:51:30,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-06-03 22:51:30,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 22:51:30,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-03 22:51:30,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 22:51:30,532 INFO L124 PetriNetUnfolderBase]: 9/39 cut-off events. [2024-06-03 22:51:30,532 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-03 22:51:30,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 39 events. 9/39 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 2 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 81. Up to 12 conditions per place. [2024-06-03 22:51:30,533 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-06-03 22:51:30,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 93 flow [2024-06-03 22:51:30,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 22:51:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 22:51:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-06-03 22:51:30,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-06-03 22:51:30,536 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 63 flow. Second operand 4 states and 45 transitions. [2024-06-03 22:51:30,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 93 flow [2024-06-03 22:51:30,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-03 22:51:30,540 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-06-03 22:51:30,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-06-03 22:51:30,542 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2024-06-03 22:51:30,542 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-06-03 22:51:30,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-06-03 22:51:30,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-03 22:51:30,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-03 22:51:30,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 22:51:30,547 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-03 22:51:30,551 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 22:51:30,551 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 22:51:30,555 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-03 22:51:30,555 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-03 22:51:30,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 10:51:30 BasicIcfg [2024-06-03 22:51:30,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 22:51:30,560 INFO L158 Benchmark]: Toolchain (without parser) took 2543.05ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 63.2MB in the beginning and 143.2MB in the end (delta: -80.0MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,560 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:30,561 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 22:51:30,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.46ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 63.0MB in the beginning and 128.1MB in the end (delta: -65.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.81ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,564 INFO L158 Benchmark]: Boogie Preprocessor took 69.67ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,564 INFO L158 Benchmark]: RCFGBuilder took 495.52ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 96.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,565 INFO L158 Benchmark]: TraceAbstraction took 1337.22ms. Allocated memory is still 178.3MB. Free memory was 95.6MB in the beginning and 143.2MB in the end (delta: -47.6MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2024-06-03 22:51:30,571 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 0.19ms. Allocated memory is still 138.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.46ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 63.0MB in the beginning and 128.1MB in the end (delta: -65.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.81ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 126.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.67ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.52ms. Allocated memory is still 178.3MB. Free memory was 123.9MB in the beginning and 96.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1337.22ms. Allocated memory is still 178.3MB. Free memory was 95.6MB in the beginning and 143.2MB in the end (delta: -47.6MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 2 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: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.7s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 22:51:30,595 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 Result: TRUE