./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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_44-traces-mine2_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_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-7724a2d-m [2024-06-27 19:41:33,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:41:33,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:41:33,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:41:33,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:41:33,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:41:33,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:41:33,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:41:33,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:41:33,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:41:33,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:41:33,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:41:33,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:41:33,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:41:33,705 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:41:33,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:41:33,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:41:33,706 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:41:33,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:41:33,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:41:33,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:41:33,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:41:33,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:41:33,708 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:41:33,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:41:33,708 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:41:33,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:41:33,709 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:41:33,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:41:33,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:41:33,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:41:33,710 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:41:33,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:41:33,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:41:33,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:41:33,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:41:33,711 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:41:33,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:41:33,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:41:33,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:41:33,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:41:33,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:41:33,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:41:33,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:41:33,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:41:33,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:41:33,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:41:33,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:41:33,901 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:41:33,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-27 19:41:34,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:41:35,223 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:41:35,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_44-traces-mine2_true.i [2024-06-27 19:41:35,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f479fd272/b9366e2f62384ca69fc8ab7aaf8c68a9/FLAG204531bca [2024-06-27 19:41:35,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f479fd272/b9366e2f62384ca69fc8ab7aaf8c68a9 [2024-06-27 19:41:35,260 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:41:35,260 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:41:35,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_44-traces-mine2_true.yml/witness.yml [2024-06-27 19:41:35,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:41:35,341 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:41:35,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:41:35,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:41:35,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:41:35,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:41:35" (1/2) ... [2024-06-27 19:41:35,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5942cfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:35, skipping insertion in model container [2024-06-27 19:41:35,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:41:35" (1/2) ... [2024-06-27 19:41:35,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@760f29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:41:35, skipping insertion in model container [2024-06-27 19:41:35,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:35" (2/2) ... [2024-06-27 19:41:35,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5942cfff and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35, skipping insertion in model container [2024-06-27 19:41:35,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:35" (2/2) ... [2024-06-27 19:41:35,353 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:41:35,371 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:41:35,372 INFO L97 edCorrectnessWitness]: Location invariant before [L697-L697] (! multithreaded || (A_locked || g == 3)) && (! multithreaded || ((g == 1 || g == 2) || g == 3)) [2024-06-27 19:41:35,372 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 19:41:35,372 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:41:35,373 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] A_locked = 1; [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] multithreaded = 1; [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 0; [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] B_locked = 1; [2024-06-27 19:41:35,373 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] A_locked = 0; [2024-06-27 19:41:35,374 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-06-27 19:41:35,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:41:35,605 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:41:35,614 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 [2024-06-27 19:41:35,670 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:41:35,698 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:41:35,699 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35 WrapperNode [2024-06-27 19:41:35,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:41:35,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:41:35,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:41:35,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:41:35,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,739 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 62 [2024-06-27 19:41:35,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:41:35,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:41:35,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:41:35,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:41:35,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,792 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]. [2024-06-27 19:41:35,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:41:35,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:41:35,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:41:35,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:41:35,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (1/1) ... [2024-06-27 19:41:35,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:41:35,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:41:35,852 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) [2024-06-27 19:41:35,878 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 [2024-06-27 19:41:35,906 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:41:35,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:41:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 19:41:35,907 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 19:41:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:41:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:41:35,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:41:35,908 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:41:35,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:41:35,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:41:35,911 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:41:35,995 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:41:35,996 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:41:36,111 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:41:36,111 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:41:36,246 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:41:36,246 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 19:41:36,247 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:41:36 BoogieIcfgContainer [2024-06-27 19:41:36,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:41:36,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:41:36,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:41:36,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:41:36,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:41:35" (1/4) ... [2024-06-27 19:41:36,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358d8324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:41:36, skipping insertion in model container [2024-06-27 19:41:36,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:41:35" (2/4) ... [2024-06-27 19:41:36,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358d8324 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:41:36, skipping insertion in model container [2024-06-27 19:41:36,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:41:35" (3/4) ... [2024-06-27 19:41:36,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358d8324 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:41:36, skipping insertion in model container [2024-06-27 19:41:36,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:41:36" (4/4) ... [2024-06-27 19:41:36,256 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2024-06-27 19:41:36,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:41:36,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 19:41:36,270 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:41:36,289 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 19:41:36,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 20 transitions, 44 flow [2024-06-27 19:41:36,328 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-06-27 19:41:36,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:41:36,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-06-27 19:41:36,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 20 transitions, 44 flow [2024-06-27 19:41:36,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 14 transitions, 31 flow [2024-06-27 19:41:36,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:41:36,342 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;@285613cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:41:36,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-27 19:41:36,354 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:41:36,354 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 19:41:36,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:41:36,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:36,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:41:36,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:36,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash 225141583, now seen corresponding path program 1 times [2024-06-27 19:41:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952034481] [2024-06-27 19:41:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:36,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952034481] [2024-06-27 19:41:36,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952034481] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:36,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:36,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:41:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090627517] [2024-06-27 19:41:36,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:36,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:41:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:36,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:41:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:41:36,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 20 [2024-06-27 19:41:36,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-27 19:41:36,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:36,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 20 [2024-06-27 19:41:36,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:36,653 INFO L124 PetriNetUnfolderBase]: 11/39 cut-off events. [2024-06-27 19:41:36,654 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 19:41:36,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 39 events. 11/39 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 7 based on Foata normal form. 5/43 useless extension candidates. Maximal degree in co-relation 71. Up to 20 conditions per place. [2024-06-27 19:41:36,656 INFO L140 encePairwiseOnDemand]: 16/20 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2024-06-27 19:41:36,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 15 transitions, 59 flow [2024-06-27 19:41:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:41:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:41:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2024-06-27 19:41:36,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-06-27 19:41:36,665 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 3 states and 26 transitions. [2024-06-27 19:41:36,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 15 transitions, 59 flow [2024-06-27 19:41:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 15 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:41:36,669 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 41 flow [2024-06-27 19:41:36,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2024-06-27 19:41:36,672 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2024-06-27 19:41:36,673 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 41 flow [2024-06-27 19:41:36,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-06-27 19:41:36,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:36,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:41:36,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:41:36,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:36,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1528129030, now seen corresponding path program 1 times [2024-06-27 19:41:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:36,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636547020] [2024-06-27 19:41:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:36,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636547020] [2024-06-27 19:41:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636547020] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:41:36,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627596679] [2024-06-27 19:41:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:36,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:41:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:36,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:41:36,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:41:36,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20 [2024-06-27 19:41:36,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-06-27 19:41:36,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:36,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20 [2024-06-27 19:41:36,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:36,861 INFO L124 PetriNetUnfolderBase]: 9/35 cut-off events. [2024-06-27 19:41:36,861 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 19:41:36,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 35 events. 9/35 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 3 based on Foata normal form. 2/36 useless extension candidates. Maximal degree in co-relation 72. Up to 16 conditions per place. [2024-06-27 19:41:36,862 INFO L140 encePairwiseOnDemand]: 13/20 looper letters, 9 selfloop transitions, 6 changer transitions 0/16 dead transitions. [2024-06-27 19:41:36,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 75 flow [2024-06-27 19:41:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:41:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:41:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2024-06-27 19:41:36,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2833333333333333 [2024-06-27 19:41:36,865 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 41 flow. Second operand 6 states and 34 transitions. [2024-06-27 19:41:36,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 75 flow [2024-06-27 19:41:36,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 19:41:36,866 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 51 flow [2024-06-27 19:41:36,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2024-06-27 19:41:36,868 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2024-06-27 19:41:36,870 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 51 flow [2024-06-27 19:41:36,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-06-27 19:41:36,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:41:36,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:41:36,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:41:36,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 19:41:36,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:41:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 653971547, now seen corresponding path program 1 times [2024-06-27 19:41:36,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:41:36,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863449480] [2024-06-27 19:41:36,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:41:36,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:41:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:41:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:41:36,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:41:36,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863449480] [2024-06-27 19:41:36,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863449480] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:41:36,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:41:36,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 19:41:36,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871892982] [2024-06-27 19:41:36,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:41:36,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 19:41:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:41:36,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 19:41:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:41:37,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 20 [2024-06-27 19:41:37,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-06-27 19:41:37,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:41:37,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 20 [2024-06-27 19:41:37,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:41:37,060 INFO L124 PetriNetUnfolderBase]: 8/29 cut-off events. [2024-06-27 19:41:37,061 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 19:41:37,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 29 events. 8/29 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 25 event pairs, 2 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 63. Up to 12 conditions per place. [2024-06-27 19:41:37,061 INFO L140 encePairwiseOnDemand]: 13/20 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-06-27 19:41:37,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 15 transitions, 77 flow [2024-06-27 19:41:37,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:41:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:41:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2024-06-27 19:41:37,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.275 [2024-06-27 19:41:37,063 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 51 flow. Second operand 6 states and 33 transitions. [2024-06-27 19:41:37,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 15 transitions, 77 flow [2024-06-27 19:41:37,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 60 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-06-27 19:41:37,065 INFO L231 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2024-06-27 19:41:37,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2024-06-27 19:41:37,067 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2024-06-27 19:41:37,067 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2024-06-27 19:41:37,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-06-27 19:41:37,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-27 19:41:37,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-27 19:41:37,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:41:37,071 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-27 19:41:37,074 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:41:37,074 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:41:37,078 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 19:41:37,079 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 19:41:37,079 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:41:37 BasicIcfg [2024-06-27 19:41:37,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:41:37,080 INFO L158 Benchmark]: Toolchain (without parser) took 1739.54ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 98.5MB in the beginning and 192.2MB in the end (delta: -93.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:37,081 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 119.2MB in the beginning and 119.1MB in the end (delta: 120.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:37,081 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 159.4MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:37,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.79ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 73.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 19:41:37,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.09ms. Allocated memory is still 159.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:41:37,082 INFO L158 Benchmark]: Boogie Preprocessor took 73.24ms. Allocated memory is still 159.4MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:41:37,082 INFO L158 Benchmark]: RCFGBuilder took 429.52ms. Allocated memory is still 159.4MB. Free memory was 69.4MB in the beginning and 103.5MB in the end (delta: -34.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-06-27 19:41:37,085 INFO L158 Benchmark]: TraceAbstraction took 831.48ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 102.2MB in the beginning and 192.2MB in the end (delta: -89.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:41:37,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 119.2MB in the beginning and 119.1MB in the end (delta: 120.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 159.4MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.79ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 73.6MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.09ms. Allocated memory is still 159.4MB. Free memory was 73.3MB in the beginning and 71.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.24ms. Allocated memory is still 159.4MB. Free memory was 71.5MB in the beginning and 69.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.52ms. Allocated memory is still 159.4MB. Free memory was 69.4MB in the beginning and 103.5MB in the end (delta: -34.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * TraceAbstraction took 831.48ms. Allocated memory was 159.4MB in the beginning and 230.7MB in the end (delta: 71.3MB). Free memory was 102.2MB in the beginning and 192.2MB in the end (delta: -89.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: 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, 32 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: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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! [2024-06-27 19:41:37,112 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