./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.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_33-traces-v-matters_true.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_33-traces-v-matters_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_33-traces-v-matters_true.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 20:56:57,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 20:56:58,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 20:56:58,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 20:56:58,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 20:56:58,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 20:56:58,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 20:56:58,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 20:56:58,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 20:56:58,047 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 20:56:58,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 20:56:58,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 20:56:58,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 20:56:58,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 20:56:58,048 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 20:56:58,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 20:56:58,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 20:56:58,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 20:56:58,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 20:56:58,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 20:56:58,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 20:56:58,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 20:56:58,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 20:56:58,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 20:56:58,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 20:56:58,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 20:56:58,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 20:56:58,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 20:56:58,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 20:56:58,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 20:56:58,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 20:56:58,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 20:56:58,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 20:56:58,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 20:56:58,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 20:56:58,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 20:56:58,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 20:56:58,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 20:56:58,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 20:56:58,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 20:56:58,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 20:56:58,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 20:56:58,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 20:56:58,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 20:56:58,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 20:56:58,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 20:56:58,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 20:56:58,218 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 20:56:58,218 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 20:56:58,219 INFO L431 ainManager$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_33-traces-v-matters_true.yml/witness.yml [2024-06-03 20:56:58,353 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 20:56:58,354 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 20:56:58,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-06-03 20:56:59,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 20:56:59,540 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 20:56:59,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-06-03 20:56:59,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0e8dd9b/1d3a54b3ce30493f867402bca5c2d1fb/FLAG427b6b43c [2024-06-03 20:56:59,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0e8dd9b/1d3a54b3ce30493f867402bca5c2d1fb [2024-06-03 20:56:59,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 20:56:59,561 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 20:56:59,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 20:56:59,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 20:56:59,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 20:56:59,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:56:58" (1/2) ... [2024-06-03 20:56:59,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37487e71 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:56:59, skipping insertion in model container [2024-06-03 20:56:59,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:56:58" (1/2) ... [2024-06-03 20:56:59,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dded16f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 08:56:59, skipping insertion in model container [2024-06-03 20:56:59,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 08:56:59" (2/2) ... [2024-06-03 20:56:59,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37487e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59, skipping insertion in model container [2024-06-03 20:56:59,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 08:56:59" (2/2) ... [2024-06-03 20:56:59,570 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 20:56:59,594 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 20:56:59,595 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] (! multithreaded || ((((0 <= g && g <= 42) && g <= 127) && g % 2 == 0) && ((g == 0 || g == 2) || g == 42))) && (! multithreaded || (C_locked || ((((0 <= g && g <= 42) && g <= 127) && g % 2 == 0) && ((g == 0 || g == 2) || g == 42)))) [2024-06-03 20:56:59,596 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 20:56:59,596 INFO L103 edCorrectnessWitness]: ghost_variable E_locked = 0 [2024-06-03 20:56:59,596 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-03 20:56:59,596 INFO L103 edCorrectnessWitness]: ghost_variable C_locked = 0 [2024-06-03 20:56:59,596 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] E_locked = 0; [2024-06-03 20:56:59,596 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] E_locked = 1; [2024-06-03 20:56:59,596 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] D_locked = 0; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] C_locked = 0; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] E_locked = 1; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] C_locked = 0; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 1; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] C_locked = 1; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] D_locked = 1; [2024-06-03 20:56:59,597 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] C_locked = 1; [2024-06-03 20:56:59,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 20:56:59,829 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 20:56:59,838 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 20:56:59,919 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 20:56:59,952 INFO L206 MainTranslator]: Completed translation [2024-06-03 20:56:59,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59 WrapperNode [2024-06-03 20:56:59,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 20:56:59,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 20:56:59,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 20:56:59,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 20:56:59,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,980 INFO L138 Inliner]: procedures = 162, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-06-03 20:56:59,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 20:56:59,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 20:56:59,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 20:56:59,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 20:56:59,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,998 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-03 20:56:59,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:56:59,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 20:57:00,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 20:57:00,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 20:57:00,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 20:57:00,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (1/1) ... [2024-06-03 20:57:00,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 20:57:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 20:57:00,034 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 20:57:00,050 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 20:57:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-03 20:57:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 20:57:00,061 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-03 20:57:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-03 20:57:00,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 20:57:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 20:57:00,063 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 20:57:00,149 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 20:57:00,151 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 20:57:00,283 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 20:57:00,283 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 20:57:00,391 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 20:57:00,391 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-03 20:57:00,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 08:57:00 BoogieIcfgContainer [2024-06-03 20:57:00,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 20:57:00,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 20:57:00,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 20:57:00,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 20:57:00,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 08:56:58" (1/4) ... [2024-06-03 20:57:00,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d74fc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 08:57:00, skipping insertion in model container [2024-06-03 20:57:00,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 08:56:59" (2/4) ... [2024-06-03 20:57:00,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d74fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 08:57:00, skipping insertion in model container [2024-06-03 20:57:00,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 08:56:59" (3/4) ... [2024-06-03 20:57:00,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627d74fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 08:57:00, skipping insertion in model container [2024-06-03 20:57:00,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 08:57:00" (4/4) ... [2024-06-03 20:57:00,397 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-06-03 20:57:00,409 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 20:57:00,410 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-03 20:57:00,410 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 20:57:00,430 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-03 20:57:00,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 62 flow [2024-06-03 20:57:00,470 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-06-03 20:57:00,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 20:57:00,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-03 20:57:00,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 62 flow [2024-06-03 20:57:00,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2024-06-03 20:57:00,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 20:57:00,485 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;@194a446b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 20:57:00,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-03 20:57:00,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 20:57:00,489 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-03 20:57:00,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 20:57:00,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:57:00,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-03 20:57:00,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 20:57:00,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:57:00,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1223428618, now seen corresponding path program 1 times [2024-06-03 20:57:00,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:57:00,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433304675] [2024-06-03 20:57:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:57:00,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:57:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:57:01,032 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 20:57:01,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:57:01,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433304675] [2024-06-03 20:57:01,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433304675] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:57:01,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:57:01,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-03 20:57:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761850787] [2024-06-03 20:57:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:57:01,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 20:57:01,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:57:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 20:57:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 20:57:01,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 29 [2024-06-03 20:57:01,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 20:57:01,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:57:01,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 29 [2024-06-03 20:57:01,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:57:01,170 INFO L124 PetriNetUnfolderBase]: 13/48 cut-off events. [2024-06-03 20:57:01,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 20:57:01,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 48 events. 13/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 7 based on Foata normal form. 3/46 useless extension candidates. Maximal degree in co-relation 80. Up to 30 conditions per place. [2024-06-03 20:57:01,172 INFO L140 encePairwiseOnDemand]: 26/29 looper letters, 13 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2024-06-03 20:57:01,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 20 transitions, 73 flow [2024-06-03 20:57:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 20:57:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 20:57:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-06-03 20:57:01,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4942528735632184 [2024-06-03 20:57:01,182 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 41 flow. Second operand 3 states and 43 transitions. [2024-06-03 20:57:01,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 20 transitions, 73 flow [2024-06-03 20:57:01,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-03 20:57:01,185 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 48 flow [2024-06-03 20:57:01,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2024-06-03 20:57:01,188 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2024-06-03 20:57:01,189 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 48 flow [2024-06-03 20:57:01,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 20:57:01,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:57:01,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:57:01,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 20:57:01,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 20:57:01,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:57:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash 295865845, now seen corresponding path program 1 times [2024-06-03 20:57:01,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:57:01,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634281213] [2024-06-03 20:57:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:57:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:57:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:57:01,288 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 20:57:01,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:57:01,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634281213] [2024-06-03 20:57:01,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634281213] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:57:01,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:57:01,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-03 20:57:01,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106334110] [2024-06-03 20:57:01,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:57:01,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-03 20:57:01,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:57:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-03 20:57:01,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-03 20:57:01,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 29 [2024-06-03 20:57:01,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 20:57:01,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:57:01,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 29 [2024-06-03 20:57:01,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:57:01,330 INFO L124 PetriNetUnfolderBase]: 10/42 cut-off events. [2024-06-03 20:57:01,331 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-03 20:57:01,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 42 events. 10/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 5 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 75. Up to 20 conditions per place. [2024-06-03 20:57:01,331 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 13 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2024-06-03 20:57:01,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 84 flow [2024-06-03 20:57:01,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-03 20:57:01,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-03 20:57:01,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2024-06-03 20:57:01,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45689655172413796 [2024-06-03 20:57:01,333 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 48 flow. Second operand 4 states and 53 transitions. [2024-06-03 20:57:01,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 84 flow [2024-06-03 20:57:01,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-03 20:57:01,334 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 54 flow [2024-06-03 20:57:01,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=4, PETRI_FLOW=54, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-06-03 20:57:01,335 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 4 predicate places. [2024-06-03 20:57:01,335 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 54 flow [2024-06-03 20:57:01,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 20:57:01,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 20:57:01,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 20:57:01,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-03 20:57:01,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-03 20:57:01,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 20:57:01,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1096520421, now seen corresponding path program 1 times [2024-06-03 20:57:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 20:57:01,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566699541] [2024-06-03 20:57:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 20:57:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 20:57:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 20:57:01,468 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 20:57:01,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 20:57:01,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566699541] [2024-06-03 20:57:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566699541] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 20:57:01,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 20:57:01,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 20:57:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86298431] [2024-06-03 20:57:01,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 20:57:01,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 20:57:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 20:57:01,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 20:57:01,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 20:57:01,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 29 [2024-06-03 20:57:01,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 20:57:01,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 20:57:01,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 29 [2024-06-03 20:57:01,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 20:57:01,505 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-06-03 20:57:01,506 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-06-03 20:57:01,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 37 events. 8/37 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 30 event pairs, 2 based on Foata normal form. 3/38 useless extension candidates. Maximal degree in co-relation 68. Up to 18 conditions per place. [2024-06-03 20:57:01,507 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-03 20:57:01,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 78 flow [2024-06-03 20:57:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 20:57:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 20:57:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-06-03 20:57:01,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827586206896552 [2024-06-03 20:57:01,510 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 54 flow. Second operand 3 states and 42 transitions. [2024-06-03 20:57:01,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 78 flow [2024-06-03 20:57:01,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-03 20:57:01,512 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-06-03 20:57:01,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, 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=3, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-06-03 20:57:01,514 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 0 predicate places. [2024-06-03 20:57:01,514 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-06-03 20:57:01,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 20:57:01,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-03 20:57:01,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-03 20:57:01,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-03 20:57:01,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-03 20:57:01,520 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 20:57:01,520 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 20:57:01,523 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-03 20:57:01,523 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-03 20:57:01,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 08:57:01 BasicIcfg [2024-06-03 20:57:01,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 20:57:01,526 INFO L158 Benchmark]: Toolchain (without parser) took 1963.87ms. Allocated memory is still 165.7MB. Free memory was 134.1MB in the beginning and 110.3MB in the end (delta: 23.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,527 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 20:57:01,527 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 20:57:01,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.79ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 107.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.08ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,529 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 103.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,530 INFO L158 Benchmark]: RCFGBuilder took 383.75ms. Allocated memory is still 165.7MB. Free memory was 103.5MB in the beginning and 124.3MB in the end (delta: -20.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,531 INFO L158 Benchmark]: TraceAbstraction took 1131.42ms. Allocated memory is still 165.7MB. Free memory was 124.3MB in the beginning and 110.3MB in the end (delta: 14.0MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-06-03 20:57:01,534 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 0.16ms. Allocated memory is still 130.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.64ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.79ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 107.7MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.08ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 165.7MB. Free memory was 105.7MB in the beginning and 103.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.75ms. Allocated memory is still 165.7MB. Free memory was 103.5MB in the beginning and 124.3MB in the end (delta: -20.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1131.42ms. Allocated memory is still 165.7MB. Free memory was 124.3MB in the beginning and 110.3MB in the end (delta: 14.0MB). Peak memory consumption was 15.0MB. 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, 45 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 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 20:57:01,558 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