./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 cde23df1 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-cde23df-m [2024-06-14 16:13:46,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 16:13:46,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 16:13:46,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 16:13:46,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 16:13:46,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 16:13:46,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 16:13:46,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 16:13:46,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 16:13:46,505 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 16:13:46,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 16:13:46,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 16:13:46,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 16:13:46,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 16:13:46,508 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 16:13:46,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 16:13:46,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 16:13:46,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 16:13:46,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 16:13:46,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 16:13:46,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 16:13:46,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 16:13:46,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 16:13:46,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 16:13:46,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 16:13:46,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 16:13:46,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 16:13:46,512 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 16:13:46,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 16:13:46,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 16:13:46,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 16:13:46,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 16:13:46,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 16:13:46,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 16:13:46,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 16:13:46,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 16:13:46,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 16:13:46,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 16:13:46,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 16:13:46,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 16:13:46,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 16:13:46,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 16:13:46,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 16:13:46,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 16:13:46,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 16:13:46,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 16:13:46,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 16:13:46,810 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 16:13:46,810 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 16:13:46,812 INFO L431 ainManager$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 [2024-06-14 16:13:46,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 16:13:46,917 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 16:13:46,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-14 16:13:48,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 16:13:48,376 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 16:13:48,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-14 16:13:48,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8a56fd4/84a46dc1fa6a49128f7a8274de7ef3fe/FLAGa7e3e5720 [2024-06-14 16:13:48,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8a56fd4/84a46dc1fa6a49128f7a8274de7ef3fe [2024-06-14 16:13:48,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 16:13:48,406 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 16:13:48,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 16:13:48,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 16:13:48,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 16:13:48,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 04:13:46" (1/2) ... [2024-06-14 16:13:48,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703d3bd4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 04:13:48, skipping insertion in model container [2024-06-14 16:13:48,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 04:13:46" (1/2) ... [2024-06-14 16:13:48,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b937652 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 04:13:48, skipping insertion in model container [2024-06-14 16:13:48,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 04:13:48" (2/2) ... [2024-06-14 16:13:48,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703d3bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48, skipping insertion in model container [2024-06-14 16:13:48,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 04:13:48" (2/2) ... [2024-06-14 16:13:48,424 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 16:13:48,463 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 16:13:48,464 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)) [2024-06-14 16:13:48,465 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-14 16:13:48,465 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-14 16:13:48,465 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 16:13:48,465 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-06-14 16:13:48,466 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-06-14 16:13:48,466 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-06-14 16:13:48,467 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-14 16:13:48,467 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-06-14 16:13:48,467 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-06-14 16:13:48,467 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-06-14 16:13:48,467 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-06-14 16:13:48,468 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-14 16:13:48,521 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 16:13:48,799 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 16:13:48,811 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 [2024-06-14 16:13:48,907 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 16:13:48,953 INFO L206 MainTranslator]: Completed translation [2024-06-14 16:13:48,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48 WrapperNode [2024-06-14 16:13:48,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 16:13:48,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 16:13:48,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 16:13:48,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 16:13:48,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:48,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,039 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-06-14 16:13:49,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 16:13:49,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 16:13:49,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 16:13:49,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 16:13:49,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,074 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]. [2024-06-14 16:13:49,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 16:13:49,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 16:13:49,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 16:13:49,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 16:13:49,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (1/1) ... [2024-06-14 16:13:49,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 16:13:49,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 16:13:49,134 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) [2024-06-14 16:13:49,136 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 [2024-06-14 16:13:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-14 16:13:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 16:13:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-14 16:13:49,161 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-14 16:13:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 16:13:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 16:13:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-14 16:13:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-14 16:13:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 16:13:49,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 16:13:49,165 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 16:13:49,276 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 16:13:49,278 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 16:13:49,446 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 16:13:49,447 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 16:13:49,557 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 16:13:49,557 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 16:13:49,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 04:13:49 BoogieIcfgContainer [2024-06-14 16:13:49,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 16:13:49,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 16:13:49,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 16:13:49,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 16:13:49,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 04:13:46" (1/4) ... [2024-06-14 16:13:49,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db5133b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 04:13:49, skipping insertion in model container [2024-06-14 16:13:49,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 04:13:48" (2/4) ... [2024-06-14 16:13:49,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db5133b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 04:13:49, skipping insertion in model container [2024-06-14 16:13:49,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 04:13:48" (3/4) ... [2024-06-14 16:13:49,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db5133b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 04:13:49, skipping insertion in model container [2024-06-14 16:13:49,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 04:13:49" (4/4) ... [2024-06-14 16:13:49,565 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2024-06-14 16:13:49,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 16:13:49,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-14 16:13:49,582 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 16:13:49,631 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-14 16:13:49,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 27 transitions, 61 flow [2024-06-14 16:13:49,690 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-06-14 16:13:49,691 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-14 16:13:49,696 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. [2024-06-14 16:13:49,696 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 27 transitions, 61 flow [2024-06-14 16:13:49,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2024-06-14 16:13:49,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 16:13:49,715 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;@30601b19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 16:13:49,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-14 16:13:49,720 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 16:13:49,720 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-14 16:13:49,720 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 16:13:49,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:13:49,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 16:13:49,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 16:13:49,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:13:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2139501867, now seen corresponding path program 1 times [2024-06-14 16:13:49,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:13:49,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331467860] [2024-06-14 16:13:49,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:13:49,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:13:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:13:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:13:50,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:13:50,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331467860] [2024-06-14 16:13:50,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331467860] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:13:50,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:13:50,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 16:13:50,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347314771] [2024-06-14 16:13:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:13:50,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 16:13:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:13:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 16:13:50,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 16:13:50,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-14 16:13:50,209 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) [2024-06-14 16:13:50,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:13:50,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-14 16:13:50,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:13:50,272 INFO L124 PetriNetUnfolderBase]: 11/48 cut-off events. [2024-06-14 16:13:50,272 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 16:13:50,274 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. [2024-06-14 16:13:50,275 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 13 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2024-06-14 16:13:50,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 75 flow [2024-06-14 16:13:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 16:13:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 16:13:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-06-14 16:13:50,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2024-06-14 16:13:50,287 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 38 transitions. [2024-06-14 16:13:50,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 75 flow [2024-06-14 16:13:50,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 16:13:50,297 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 51 flow [2024-06-14 16:13:50,299 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} [2024-06-14 16:13:50,305 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2024-06-14 16:13:50,305 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 51 flow [2024-06-14 16:13:50,305 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) [2024-06-14 16:13:50,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:13:50,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 16:13:50,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 16:13:50,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 16:13:50,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:13:50,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1651174440, now seen corresponding path program 1 times [2024-06-14 16:13:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:13:50,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326334652] [2024-06-14 16:13:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:13:50,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:13:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:13:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:13:50,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:13:50,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326334652] [2024-06-14 16:13:50,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326334652] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:13:50,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:13:50,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 16:13:50,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773155890] [2024-06-14 16:13:50,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:13:50,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 16:13:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:13:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 16:13:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 16:13:50,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-14 16:13:50,682 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) [2024-06-14 16:13:50,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:13:50,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-14 16:13:50,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:13:50,757 INFO L124 PetriNetUnfolderBase]: 10/47 cut-off events. [2024-06-14 16:13:50,758 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-14 16:13:50,758 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. [2024-06-14 16:13:50,759 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 12 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2024-06-14 16:13:50,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 99 flow [2024-06-14 16:13:50,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 16:13:50,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 16:13:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2024-06-14 16:13:50,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-06-14 16:13:50,763 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 51 flow. Second operand 5 states and 55 transitions. [2024-06-14 16:13:50,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 99 flow [2024-06-14 16:13:50,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 23 transitions, 93 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 16:13:50,767 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 63 flow [2024-06-14 16:13:50,769 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} [2024-06-14 16:13:50,770 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 5 predicate places. [2024-06-14 16:13:50,770 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 63 flow [2024-06-14 16:13:50,772 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) [2024-06-14 16:13:50,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 16:13:50,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 16:13:50,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 16:13:50,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-14 16:13:50,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 16:13:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash -126264686, now seen corresponding path program 1 times [2024-06-14 16:13:50,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 16:13:50,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55276220] [2024-06-14 16:13:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 16:13:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 16:13:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 16:13:50,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 16:13:50,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 16:13:50,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55276220] [2024-06-14 16:13:50,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55276220] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 16:13:50,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 16:13:50,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 16:13:50,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361941324] [2024-06-14 16:13:50,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 16:13:50,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 16:13:50,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 16:13:50,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 16:13:50,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-14 16:13:50,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2024-06-14 16:13:50,908 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) [2024-06-14 16:13:50,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 16:13:50,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2024-06-14 16:13:50,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 16:13:50,953 INFO L124 PetriNetUnfolderBase]: 9/39 cut-off events. [2024-06-14 16:13:50,953 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-06-14 16:13:50,954 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. [2024-06-14 16:13:50,954 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-06-14 16:13:50,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 93 flow [2024-06-14 16:13:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 16:13:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 16:13:50,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2024-06-14 16:13:50,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-06-14 16:13:50,957 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 63 flow. Second operand 4 states and 45 transitions. [2024-06-14 16:13:50,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 93 flow [2024-06-14 16:13:50,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-14 16:13:50,961 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-06-14 16:13:50,962 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} [2024-06-14 16:13:50,963 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places. [2024-06-14 16:13:50,963 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-06-14 16:13:50,964 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) [2024-06-14 16:13:50,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-14 16:13:50,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-14 16:13:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 16:13:50,968 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-14 16:13:50,972 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 16:13:50,972 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 16:13:50,976 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-14 16:13:50,976 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-14 16:13:50,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 04:13:50 BasicIcfg [2024-06-14 16:13:50,978 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 16:13:50,981 INFO L158 Benchmark]: Toolchain (without parser) took 2572.72ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 88.7MB in the beginning and 148.8MB in the end (delta: -60.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,982 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 16:13:50,982 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 16:13:50,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.93ms. Allocated memory is still 151.0MB. Free memory was 88.4MB in the beginning and 62.8MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.68ms. Allocated memory is still 151.0MB. Free memory was 62.8MB in the beginning and 120.2MB in the end (delta: -57.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,983 INFO L158 Benchmark]: Boogie Preprocessor took 57.49ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 120.2MB in the beginning and 196.2MB in the end (delta: -76.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,983 INFO L158 Benchmark]: RCFGBuilder took 453.00ms. Allocated memory is still 226.5MB. Free memory was 196.2MB in the beginning and 169.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,985 INFO L158 Benchmark]: TraceAbstraction took 1418.08ms. Allocated memory is still 226.5MB. Free memory was 167.9MB in the beginning and 148.8MB in the end (delta: 19.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-06-14 16:13:50,993 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 0.21ms. Allocated memory is still 151.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.93ms. Allocated memory is still 151.0MB. Free memory was 88.4MB in the beginning and 62.8MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.68ms. Allocated memory is still 151.0MB. Free memory was 62.8MB in the beginning and 120.2MB in the end (delta: -57.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.49ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 120.2MB in the beginning and 196.2MB in the end (delta: -76.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.00ms. Allocated memory is still 226.5MB. Free memory was 196.2MB in the beginning and 169.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1418.08ms. Allocated memory is still 226.5MB. Free memory was 167.9MB in the beginning and 148.8MB in the end (delta: 19.1MB). Peak memory consumption was 17.0MB. 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, 0.1s 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! [2024-06-14 16:13:51,031 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 Result: TRUE