./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_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_41-traces-ex-7_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_41-traces-ex-7_unknown_1_neg.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-04 18:17:47,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 18:17:47,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 18:17:47,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 18:17:47,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 18:17:47,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 18:17:47,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 18:17:47,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 18:17:47,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 18:17:47,257 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 18:17:47,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 18:17:47,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 18:17:47,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 18:17:47,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 18:17:47,258 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 18:17:47,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 18:17:47,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 18:17:47,259 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 18:17:47,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 18:17:47,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 18:17:47,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 18:17:47,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 18:17:47,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 18:17:47,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 18:17:47,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 18:17:47,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 18:17:47,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 18:17:47,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 18:17:47,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 18:17:47,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 18:17:47,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 18:17:47,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 18:17:47,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 18:17:47,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 18:17:47,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 18:17:47,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 18:17:47,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 18:17:47,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 18:17:47,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 18:17:47,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 18:17:47,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 18:17:47,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 18:17:47,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 18:17:47,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 18:17:47,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 18:17:47,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 18:17:47,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 18:17:47,484 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 18:17:47,485 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 18:17:47,486 INFO L431 ainManager$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_41-traces-ex-7_unknown_1_neg.yml/witness.yml [2024-06-04 18:17:47,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 18:17:47,556 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 18:17:47,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-04 18:17:48,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 18:17:48,915 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 18:17:48,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-04 18:17:48,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84fb8226/d5d838c6c6a147d4b0eb7dd94496ea3f/FLAG750b90bbd [2024-06-04 18:17:48,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84fb8226/d5d838c6c6a147d4b0eb7dd94496ea3f [2024-06-04 18:17:48,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 18:17:48,946 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 18:17:48,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 18:17:48,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 18:17:48,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 18:17:48,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:17:47" (1/2) ... [2024-06-04 18:17:48,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433f3da4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 06:17:48, skipping insertion in model container [2024-06-04 18:17:48,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:17:47" (1/2) ... [2024-06-04 18:17:48,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5912c8f8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 06:17:48, skipping insertion in model container [2024-06-04 18:17:48,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 06:17:48" (2/2) ... [2024-06-04 18:17:48,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433f3da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:48, skipping insertion in model container [2024-06-04 18:17:48,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 06:17:48" (2/2) ... [2024-06-04 18:17:48,956 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 18:17:48,981 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 18:17:48,982 INFO L97 edCorrectnessWitness]: Location invariant before [L695-L695] ((! multithreaded || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17))) && (! multithreaded || (D_locked || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17))))) && (! multithreaded || (A_locked || ((((0 <= g && g <= 17) && g <= 127) && g % 17 == 0) && (g == 0 || g == 17)))) [2024-06-04 18:17:48,982 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-04 18:17:48,983 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 18:17:48,983 INFO L103 edCorrectnessWitness]: ghost_variable D_locked = 0 [2024-06-04 18:17:48,983 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] D_locked = 0; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L695-L695] D_locked = 1; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] A_locked = 1; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] A_locked = 0; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 1; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] D_locked = 0; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] multithreaded = 1; [2024-06-04 18:17:48,984 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] D_locked = 1; [2024-06-04 18:17:49,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 18:17:49,326 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 18:17:49,337 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 [2024-06-04 18:17:49,430 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 18:17:49,502 INFO L206 MainTranslator]: Completed translation [2024-06-04 18:17:49,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49 WrapperNode [2024-06-04 18:17:49,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 18:17:49,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 18:17:49,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 18:17:49,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 18:17:49,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,559 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-06-04 18:17:49,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 18:17:49,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 18:17:49,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 18:17:49,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 18:17:49,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,597 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]. [2024-06-04 18:17:49,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 18:17:49,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 18:17:49,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 18:17:49,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 18:17:49,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (1/1) ... [2024-06-04 18:17:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 18:17:49,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 18:17:49,632 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) [2024-06-04 18:17:49,650 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 [2024-06-04 18:17:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-04 18:17:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-04 18:17:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-04 18:17:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 18:17:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 18:17:49,676 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 18:17:49,764 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 18:17:49,765 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 18:17:49,928 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 18:17:49,928 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 18:17:50,020 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 18:17:50,020 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 18:17:50,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 06:17:50 BoogieIcfgContainer [2024-06-04 18:17:50,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 18:17:50,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 18:17:50,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 18:17:50,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 18:17:50,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 06:17:47" (1/4) ... [2024-06-04 18:17:50,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f86c31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 06:17:50, skipping insertion in model container [2024-06-04 18:17:50,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 06:17:48" (2/4) ... [2024-06-04 18:17:50,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f86c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 06:17:50, skipping insertion in model container [2024-06-04 18:17:50,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 06:17:49" (3/4) ... [2024-06-04 18:17:50,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f86c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 06:17:50, skipping insertion in model container [2024-06-04 18:17:50,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 06:17:50" (4/4) ... [2024-06-04 18:17:50,027 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2024-06-04 18:17:50,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 18:17:50,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-04 18:17:50,040 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 18:17:50,073 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-04 18:17:50,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 50 flow [2024-06-04 18:17:50,124 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-06-04 18:17:50,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 18:17:50,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-04 18:17:50,126 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 50 flow [2024-06-04 18:17:50,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 15 transitions, 33 flow [2024-06-04 18:17:50,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 18:17:50,142 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;@387ca5f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 18:17:50,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-04 18:17:50,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 18:17:50,147 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 18:17:50,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 18:17:50,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:17:50,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 18:17:50,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 18:17:50,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:17:50,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1730034524, now seen corresponding path program 1 times [2024-06-04 18:17:50,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:17:50,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118259173] [2024-06-04 18:17:50,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:17:50,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:17:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:17:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:17:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:17:50,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118259173] [2024-06-04 18:17:50,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118259173] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 18:17:50,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 18:17:50,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 18:17:50,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144814999] [2024-06-04 18:17:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 18:17:50,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 18:17:50,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:17:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 18:17:50,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 18:17:50,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-04 18:17:50,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 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) [2024-06-04 18:17:50,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:17:50,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-04 18:17:50,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:17:50,562 INFO L124 PetriNetUnfolderBase]: 9/34 cut-off events. [2024-06-04 18:17:50,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 18:17:50,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 34 events. 9/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 5 based on Foata normal form. 3/35 useless extension candidates. Maximal degree in co-relation 56. Up to 20 conditions per place. [2024-06-04 18:17:50,564 INFO L140 encePairwiseOnDemand]: 20/23 looper letters, 11 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2024-06-04 18:17:50,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 61 flow [2024-06-04 18:17:50,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 18:17:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 18:17:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-06-04 18:17:50,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-06-04 18:17:50,575 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 35 transitions. [2024-06-04 18:17:50,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 61 flow [2024-06-04 18:17:50,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 18:17:50,578 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 40 flow [2024-06-04 18:17:50,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2024-06-04 18:17:50,582 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2024-06-04 18:17:50,583 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 40 flow [2024-06-04 18:17:50,583 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) [2024-06-04 18:17:50,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:17:50,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 18:17:50,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 18:17:50,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 18:17:50,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:17:50,585 INFO L85 PathProgramCache]: Analyzing trace with hash 104780761, now seen corresponding path program 1 times [2024-06-04 18:17:50,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:17:50,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885809930] [2024-06-04 18:17:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:17:50,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:17:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:17:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:17:50,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:17:50,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885809930] [2024-06-04 18:17:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885809930] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 18:17:50,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 18:17:50,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 18:17:50,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095324477] [2024-06-04 18:17:50,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 18:17:50,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 18:17:50,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:17:50,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 18:17:50,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 18:17:50,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-04 18:17:50,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 40 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) [2024-06-04 18:17:50,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:17:50,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-04 18:17:50,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:17:50,825 INFO L124 PetriNetUnfolderBase]: 8/33 cut-off events. [2024-06-04 18:17:50,826 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-04 18:17:50,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 33 events. 8/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 2 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 60. Up to 16 conditions per place. [2024-06-04 18:17:50,826 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 11 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2024-06-04 18:17:50,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 82 flow [2024-06-04 18:17:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 18:17:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 18:17:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2024-06-04 18:17:50,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45217391304347826 [2024-06-04 18:17:50,829 INFO L175 Difference]: Start difference. First operand has 21 places, 15 transitions, 40 flow. Second operand 5 states and 52 transitions. [2024-06-04 18:17:50,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 82 flow [2024-06-04 18:17:50,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 18:17:50,831 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 50 flow [2024-06-04 18:17:50,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=50, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2024-06-04 18:17:50,834 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 5 predicate places. [2024-06-04 18:17:50,834 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 50 flow [2024-06-04 18:17:50,834 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) [2024-06-04 18:17:50,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:17:50,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 18:17:50,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 18:17:50,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 18:17:50,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:17:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash 464488665, now seen corresponding path program 1 times [2024-06-04 18:17:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:17:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102467218] [2024-06-04 18:17:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:17:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:17:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:17:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:17:50,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:17:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102467218] [2024-06-04 18:17:50,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102467218] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 18:17:50,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 18:17:50,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 18:17:50,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324161293] [2024-06-04 18:17:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 18:17:50,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 18:17:50,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:17:50,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 18:17:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 18:17:50,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-04 18:17:51,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 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) [2024-06-04 18:17:51,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:17:51,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-04 18:17:51,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:17:51,047 INFO L124 PetriNetUnfolderBase]: 7/31 cut-off events. [2024-06-04 18:17:51,047 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-06-04 18:17:51,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 31 events. 7/31 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 3 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 67. Up to 13 conditions per place. [2024-06-04 18:17:51,048 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 9 selfloop transitions, 5 changer transitions 0/17 dead transitions. [2024-06-04 18:17:51,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 82 flow [2024-06-04 18:17:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 18:17:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 18:17:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2024-06-04 18:17:51,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-06-04 18:17:51,051 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 50 flow. Second operand 6 states and 57 transitions. [2024-06-04 18:17:51,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 82 flow [2024-06-04 18:17:51,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-04 18:17:51,053 INFO L231 Difference]: Finished difference. Result has 26 places, 15 transitions, 54 flow [2024-06-04 18:17:51,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=54, PETRI_PLACES=26, PETRI_TRANSITIONS=15} [2024-06-04 18:17:51,055 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 7 predicate places. [2024-06-04 18:17:51,055 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 15 transitions, 54 flow [2024-06-04 18:17:51,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 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) [2024-06-04 18:17:51,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 18:17:51,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 18:17:51,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 18:17:51,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-04 18:17:51,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 18:17:51,057 INFO L85 PathProgramCache]: Analyzing trace with hash -629605920, now seen corresponding path program 1 times [2024-06-04 18:17:51,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 18:17:51,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405454716] [2024-06-04 18:17:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 18:17:51,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 18:17:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 18:17:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 18:17:51,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 18:17:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405454716] [2024-06-04 18:17:51,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405454716] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 18:17:51,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 18:17:51,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 18:17:51,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260382847] [2024-06-04 18:17:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 18:17:51,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 18:17:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 18:17:51,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 18:17:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 18:17:51,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2024-06-04 18:17:51,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 15 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-04 18:17:51,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 18:17:51,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2024-06-04 18:17:51,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 18:17:51,218 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2024-06-04 18:17:51,218 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-06-04 18:17:51,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 27 events. 6/27 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 2 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 54. Up to 12 conditions per place. [2024-06-04 18:17:51,219 INFO L140 encePairwiseOnDemand]: 21/23 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-06-04 18:17:51,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 15 transitions, 72 flow [2024-06-04 18:17:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 18:17:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 18:17:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2024-06-04 18:17:51,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2024-06-04 18:17:51,222 INFO L175 Difference]: Start difference. First operand has 26 places, 15 transitions, 54 flow. Second operand 3 states and 34 transitions. [2024-06-04 18:17:51,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 15 transitions, 72 flow [2024-06-04 18:17:51,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-04 18:17:51,225 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2024-06-04 18:17:51,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2024-06-04 18:17:51,225 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2024-06-04 18:17:51,226 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2024-06-04 18:17:51,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-06-04 18:17:51,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-04 18:17:51,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-04 18:17:51,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 18:17:51,229 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-04 18:17:51,232 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 18:17:51,232 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 18:17:51,238 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-04 18:17:51,238 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-04 18:17:51,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 06:17:51 BasicIcfg [2024-06-04 18:17:51,239 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 18:17:51,240 INFO L158 Benchmark]: Toolchain (without parser) took 2294.35ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 75.3MB in the beginning and 95.1MB in the end (delta: -19.8MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,240 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 18:17:51,240 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 18:17:51,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.90ms. Allocated memory is still 136.3MB. Free memory was 75.3MB in the beginning and 104.7MB in the end (delta: -29.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.60ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 104.6MB in the beginning and 183.6MB in the end (delta: -78.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,243 INFO L158 Benchmark]: Boogie Preprocessor took 46.15ms. Allocated memory is still 213.9MB. Free memory was 183.6MB in the beginning and 181.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,246 INFO L158 Benchmark]: RCFGBuilder took 414.10ms. Allocated memory is still 213.9MB. Free memory was 181.5MB in the beginning and 154.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,248 INFO L158 Benchmark]: TraceAbstraction took 1216.87ms. Allocated memory is still 213.9MB. Free memory was 154.2MB in the beginning and 95.1MB in the end (delta: 59.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2024-06-04 18:17:51,249 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 0.17ms. Allocated memory is still 136.3MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.90ms. Allocated memory is still 136.3MB. Free memory was 75.3MB in the beginning and 104.7MB in the end (delta: -29.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.60ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 104.6MB in the beginning and 183.6MB in the end (delta: -78.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.15ms. Allocated memory is still 213.9MB. Free memory was 183.6MB in the beginning and 181.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.10ms. Allocated memory is still 213.9MB. Free memory was 181.5MB in the beginning and 154.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1216.87ms. Allocated memory is still 213.9MB. Free memory was 154.2MB in the beginning and 95.1MB in the end (delta: 59.1MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: 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, 35 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: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, InterpolantAutomatonStates: 17, 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-06-04 18:17:51,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE