./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c --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/popl20-more-queue-add-2-nl.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-queue-add-2-nl.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:20:51,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:20:52,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:20:52,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:20:52,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:20:52,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:20:52,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:20:52,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:20:52,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:20:52,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:20:52,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:20:52,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:20:52,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:20:52,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:20:52,062 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:20:52,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:20:52,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:20:52,063 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:20:52,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:20:52,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:20:52,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:20:52,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:20:52,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:20:52,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:20:52,064 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:20:52,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:20:52,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:20:52,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:20:52,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:20:52,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:20:52,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:20:52,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:20:52,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:52,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:20:52,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:20:52,069 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:20:52,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:20:52,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:20:52,069 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:20:52,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:20:52,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:20:52,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:20:52,328 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:20:52,328 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:20:52,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-queue-add-2-nl.wvr.yml/witness.yml [2024-06-14 14:20:52,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:20:52,399 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:20:52,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-06-14 14:20:53,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:20:53,555 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:20:53,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2024-06-14 14:20:53,563 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75fa11ce/1a40376ff8f940e4b950ac5faf58dc07/FLAGe06462f84 [2024-06-14 14:20:53,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75fa11ce/1a40376ff8f940e4b950ac5faf58dc07 [2024-06-14 14:20:53,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:20:53,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:20:53,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:53,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:20:53,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:20:53,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:52" (1/2) ... [2024-06-14 14:20:53,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b5eae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:53, skipping insertion in model container [2024-06-14 14:20:53,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:52" (1/2) ... [2024-06-14 14:20:53,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13650330 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:53, skipping insertion in model container [2024-06-14 14:20:53,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:53" (2/2) ... [2024-06-14 14:20:53,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b5eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53, skipping insertion in model container [2024-06-14 14:20:53,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:53" (2/2) ... [2024-06-14 14:20:53,588 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:20:53,602 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:20:53,603 INFO L97 edCorrectnessWitness]: Location invariant before [L101-L101] ! multithreaded || (((((((((((((((((((2147483648LL + (long long )C) + (long long )q_front >= 0LL && (2147483648LL + (long long )C) + (long long )n >= 0LL) && (2147483648LL + (long long )C) + (long long )N >= 0LL) && (4294967296LL + (long long )q_back) + (long long )q_front >= 0LL) && (4294967296LL + (long long )n) + (long long )q_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q_front >= 0LL) && (4294967296LL + (long long )N) + (long long )n >= 0LL) && (4294967295LL - (long long )n) + (long long )q_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q_front >= 0LL) && (4294967295LL - (long long )N) + (long long )n >= 0LL) && (6442450943LL - (long long )C) + (long long )q_front >= 0LL) && (6442450943LL - (long long )C) + (long long )n >= 0LL) && (6442450943LL - (long long )C) + (long long )N >= 0LL) && (2147483647LL + (long long )C) - (long long )n >= 0LL) && (2147483647LL + (long long )C) - (long long )N >= 0LL) && (4294967295LL + (long long )N) - (long long )n >= 0LL) && (4294967294LL - (long long )N) - (long long )n >= 0LL) && (6442450942LL - (long long )C) - (long long )n >= 0LL) && (6442450942LL - (long long )C) - (long long )N >= 0LL) [2024-06-14 14:20:53,604 INFO L97 edCorrectnessWitness]: Location invariant before [L100-L100] ! multithreaded || (((((((((((((((((((2147483648LL + (long long )C) + (long long )q_front >= 0LL && (2147483648LL + (long long )C) + (long long )n >= 0LL) && (2147483648LL + (long long )C) + (long long )N >= 0LL) && (4294967296LL + (long long )q_back) + (long long )q_front >= 0LL) && (4294967296LL + (long long )n) + (long long )q_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q_front >= 0LL) && (4294967296LL + (long long )N) + (long long )n >= 0LL) && (4294967295LL - (long long )n) + (long long )q_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q_front >= 0LL) && (4294967295LL - (long long )N) + (long long )n >= 0LL) && (6442450943LL - (long long )C) + (long long )q_front >= 0LL) && (6442450943LL - (long long )C) + (long long )n >= 0LL) && (6442450943LL - (long long )C) + (long long )N >= 0LL) && (2147483647LL + (long long )C) - (long long )n >= 0LL) && (2147483647LL + (long long )C) - (long long )N >= 0LL) && (4294967295LL + (long long )N) - (long long )n >= 0LL) && (4294967294LL - (long long )N) - (long long )n >= 0LL) && (6442450942LL - (long long )C) - (long long )n >= 0LL) && (6442450942LL - (long long )C) - (long long )N >= 0LL) [2024-06-14 14:20:53,604 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:20:53,604 INFO L106 edCorrectnessWitness]: ghost_update [L99-L99] multithreaded = 1; [2024-06-14 14:20:53,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:20:53,800 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:53,807 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:20:53,868 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:53,880 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:20:53,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53 WrapperNode [2024-06-14 14:20:53,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:53,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:53,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:20:53,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:20:53,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,927 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 166 [2024-06-14 14:20:53,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:53,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:20:53,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:20:53,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:20:53,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,961 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-06-14 14:20:53,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:53,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:20:53,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:20:53,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:20:53,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:20:54,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (1/1) ... [2024-06-14 14:20:54,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:54,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:54,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 14:20:54,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 14:20:54,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:20:54,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:20:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:20:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:20:54,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:20:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:20:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:20:54,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:20:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:20:54,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:20:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:20:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:20:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:20:54,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:20:54,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:20:54,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:20:54,102 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:20:54,213 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:20:54,215 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:20:54,524 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:20:54,525 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:20:54,669 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:20:54,670 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-06-14 14:20:54,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:54 BoogieIcfgContainer [2024-06-14 14:20:54,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:20:54,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:20:54,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:20:54,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:20:54,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:52" (1/4) ... [2024-06-14 14:20:54,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb15063 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:20:53" (2/4) ... [2024-06-14 14:20:54,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb15063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:53" (3/4) ... [2024-06-14 14:20:54,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb15063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:54" (4/4) ... [2024-06-14 14:20:54,679 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2024-06-14 14:20:54,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:20:54,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-14 14:20:54,692 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:20:54,727 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-14 14:20:54,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 80 flow [2024-06-14 14:20:54,778 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2024-06-14 14:20:54,779 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-14 14:20:54,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 4/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-06-14 14:20:54,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 80 flow [2024-06-14 14:20:54,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 67 flow [2024-06-14 14:20:54,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:20:54,798 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;@4190a5c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:20:54,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-14 14:20:54,802 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:20:54,802 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-06-14 14:20:54,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:54,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:54,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:54,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:20:54,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1584567660, now seen corresponding path program 1 times [2024-06-14 14:20:54,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:54,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992047605] [2024-06-14 14:20:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:54,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:55,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992047605] [2024-06-14 14:20:55,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992047605] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:55,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:20:55,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:20:55,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609085019] [2024-06-14 14:20:55,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:55,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 14:20:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 14:20:55,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 14:20:55,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-14 14:20:55,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:55,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:55,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-14 14:20:55,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:55,525 INFO L124 PetriNetUnfolderBase]: 195/389 cut-off events. [2024-06-14 14:20:55,526 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2024-06-14 14:20:55,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 389 events. 195/389 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1545 event pairs, 157 based on Foata normal form. 50/411 useless extension candidates. Maximal degree in co-relation 605. Up to 286 conditions per place. [2024-06-14 14:20:55,532 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 22 selfloop transitions, 2 changer transitions 11/40 dead transitions. [2024-06-14 14:20:55,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 165 flow [2024-06-14 14:20:55,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 14:20:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 14:20:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2024-06-14 14:20:55,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2024-06-14 14:20:55,542 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 67 flow. Second operand 4 states and 70 transitions. [2024-06-14 14:20:55,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 165 flow [2024-06-14 14:20:55,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 157 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:20:55,546 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 82 flow [2024-06-14 14:20:55,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2024-06-14 14:20:55,550 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2024-06-14 14:20:55,550 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 82 flow [2024-06-14 14:20:55,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:55,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:55,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:55,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:20:55,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-14 14:20:55,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:55,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1667001612, now seen corresponding path program 1 times [2024-06-14 14:20:55,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:55,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997069958] [2024-06-14 14:20:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:55,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:55,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:55,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997069958] [2024-06-14 14:20:55,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997069958] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747155603] [2024-06-14 14:20:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:55,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:55,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:55,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:20:55,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:20:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:55,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2024-06-14 14:20:55,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:56,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:20:56,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:56,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747155603] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 14:20:56,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 14:20:56,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-06-14 14:20:56,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134285353] [2024-06-14 14:20:56,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 14:20:56,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-14 14:20:56,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-14 14:20:56,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-06-14 14:20:56,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-06-14 14:20:56,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 82 flow. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:56,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:56,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-06-14 14:20:56,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:56,515 INFO L124 PetriNetUnfolderBase]: 238/479 cut-off events. [2024-06-14 14:20:56,516 INFO L125 PetriNetUnfolderBase]: For 126/132 co-relation queries the response was YES. [2024-06-14 14:20:56,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 479 events. 238/479 cut-off events. For 126/132 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2071 event pairs, 124 based on Foata normal form. 81/532 useless extension candidates. Maximal degree in co-relation 997. Up to 189 conditions per place. [2024-06-14 14:20:56,520 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2024-06-14 14:20:56,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 55 transitions, 250 flow [2024-06-14 14:20:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:20:56,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:20:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-06-14 14:20:56,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588744588744589 [2024-06-14 14:20:56,530 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 82 flow. Second operand 7 states and 106 transitions. [2024-06-14 14:20:56,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 55 transitions, 250 flow [2024-06-14 14:20:56,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 55 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-14 14:20:56,533 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-06-14 14:20:56,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-06-14 14:20:56,534 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2024-06-14 14:20:56,535 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-06-14 14:20:56,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:56,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-14 14:20:56,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-14 14:20:56,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-14 14:20:56,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-14 14:20:56,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-14 14:20:56,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:56,749 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-14 14:20:56,752 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:20:56,752 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:20:56,755 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-14 14:20:56,755 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-14 14:20:56,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:20:56 BasicIcfg [2024-06-14 14:20:56,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:20:56,757 INFO L158 Benchmark]: Toolchain (without parser) took 3179.74ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 118.5MB in the beginning and 94.2MB in the end (delta: 24.4MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,757 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 157.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:56,757 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:56,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.17ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 102.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.46ms. Allocated memory is still 157.3MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,758 INFO L158 Benchmark]: Boogie Preprocessor took 48.49ms. Allocated memory is still 157.3MB. Free memory was 100.3MB in the beginning and 97.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,758 INFO L158 Benchmark]: RCFGBuilder took 693.38ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 74.8MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,758 INFO L158 Benchmark]: TraceAbstraction took 2083.97ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 73.9MB in the beginning and 94.2MB in the end (delta: -20.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-06-14 14:20:56,763 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 0.15ms. Allocated memory is still 157.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 157.3MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.17ms. Allocated memory is still 157.3MB. Free memory was 118.5MB in the beginning and 102.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.46ms. Allocated memory is still 157.3MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.49ms. Allocated memory is still 157.3MB. Free memory was 100.3MB in the beginning and 97.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 693.38ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 74.8MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2083.97ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 73.9MB in the beginning and 94.2MB in the end (delta: -20.3MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 101]: 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 5 procedures, 46 locations, 4 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: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 2 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 592 SizeOfPredicates, 2 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:20:56,793 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