./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/protection/13-privatized_19-publish-precision_unknown_2_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i ./goblint.2024-05-07_14-17-48.files/protection/13-privatized_19-publish-precision_unknown_2_neg.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-b44c828-m [2024-05-12 13:44:53,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 13:44:53,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 13:44:53,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 13:44:53,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 13:44:54,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 13:44:54,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 13:44:54,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 13:44:54,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 13:44:54,013 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 13:44:54,013 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 13:44:54,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 13:44:54,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 13:44:54,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 13:44:54,015 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 13:44:54,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 13:44:54,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 13:44:54,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 13:44:54,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 13:44:54,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 13:44:54,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 13:44:54,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 13:44:54,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 13:44:54,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 13:44:54,017 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 13:44:54,018 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 13:44:54,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 13:44:54,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 13:44:54,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 13:44:54,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 13:44:54,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 13:44:54,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 13:44:54,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:44:54,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 13:44:54,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 13:44:54,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 13:44:54,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 13:44:54,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 13:44:54,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 13:44:54,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 13:44:54,021 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 13:44:54,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 13:44:54,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 13:44:54,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 13:44:54,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 13:44:54,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 13:44:54,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 13:44:54,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 13:44:54,246 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 13:44:54,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-05-12 13:44:55,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 13:44:55,455 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 13:44:55,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-05-12 13:44:55,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55923508/dbfbdb12ad374973b2f23037a0ad47bd/FLAG312b6db0e [2024-05-12 13:44:55,474 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d55923508/dbfbdb12ad374973b2f23037a0ad47bd [2024-05-12 13:44:55,476 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 13:44:55,476 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 13:44:55,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/protection/13-privatized_19-publish-precision_unknown_2_neg.yml/witness.yml [2024-05-12 13:44:55,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 13:44:55,543 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 13:44:55,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 13:44:55,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 13:44:55,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 13:44:55,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:44:55" (1/2) ... [2024-05-12 13:44:55,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73306d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:44:55, skipping insertion in model container [2024-05-12 13:44:55,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 01:44:55" (1/2) ... [2024-05-12 13:44:55,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bedccaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 01:44:55, skipping insertion in model container [2024-05-12 13:44:55,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:44:55" (2/2) ... [2024-05-12 13:44:55,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73306d6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:55, skipping insertion in model container [2024-05-12 13:44:55,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:44:55" (2/2) ... [2024-05-12 13:44:55,554 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 13:44:55,580 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 13:44:55,582 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || ((((0 <= glob1 && glob1 <= 5) && glob1 <= 127) && glob1 % 5 == 0) && (glob1 == 0 || glob1 == 5)) [2024-05-12 13:44:55,582 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-05-12 13:44:55,582 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 13:44:55,582 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-05-12 13:44:55,582 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-05-12 13:44:55,583 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-05-12 13:44:55,583 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] mutex2_locked = 0; [2024-05-12 13:44:55,583 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] mutex1_locked = 1; [2024-05-12 13:44:55,583 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] mutex2_locked = 1; [2024-05-12 13:44:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] mutex2_locked = 0; [2024-05-12 13:44:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] mutex1_locked = 0; [2024-05-12 13:44:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] mutex2_locked = 1; [2024-05-12 13:44:55,584 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] mutex2_locked = 0; [2024-05-12 13:44:55,631 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 13:44:55,820 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2024-05-12 13:44:55,944 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:44:55,956 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 13:44:55,991 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] 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 [2024-05-12 13:44:56,025 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 13:44:56,050 INFO L206 MainTranslator]: Completed translation [2024-05-12 13:44:56,050 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56 WrapperNode [2024-05-12 13:44:56,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 13:44:56,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 13:44:56,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 13:44:56,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 13:44:56,057 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 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,076 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 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,092 INFO L138 Inliner]: procedures = 163, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-05-12 13:44:56,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 13:44:56,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 13:44:56,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 13:44:56,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 13:44:56,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,115 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-05-12 13:44:56,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 13:44:56,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 13:44:56,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 13:44:56,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 13:44:56,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (1/1) ... [2024-05-12 13:44:56,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 13:44:56,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 13:44:56,148 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) [2024-05-12 13:44:56,149 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 [2024-05-12 13:44:56,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 13:44:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 13:44:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 13:44:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 13:44:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 13:44:56,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-12 13:44:56,184 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 13:44:56,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 13:44:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 13:44:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 13:44:56,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 13:44:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 13:44:56,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 13:44:56,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 13:44:56,189 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 13:44:56,289 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 13:44:56,290 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 13:44:56,454 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 13:44:56,454 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 13:44:56,552 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 13:44:56,552 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 13:44:56,553 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:44:56 BoogieIcfgContainer [2024-05-12 13:44:56,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 13:44:56,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 13:44:56,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 13:44:56,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 13:44:56,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 01:44:55" (1/4) ... [2024-05-12 13:44:56,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab42ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 01:44:56, skipping insertion in model container [2024-05-12 13:44:56,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 01:44:55" (2/4) ... [2024-05-12 13:44:56,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab42ced and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:44:56, skipping insertion in model container [2024-05-12 13:44:56,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 01:44:56" (3/4) ... [2024-05-12 13:44:56,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab42ced and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 01:44:56, skipping insertion in model container [2024-05-12 13:44:56,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 01:44:56" (4/4) ... [2024-05-12 13:44:56,559 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2024-05-12 13:44:56,571 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 13:44:56,573 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-05-12 13:44:56,573 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 13:44:56,604 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-12 13:44:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 71 flow [2024-05-12 13:44:56,670 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-05-12 13:44:56,671 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 13:44:56,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 31 events. 1/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-05-12 13:44:56,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 32 transitions, 71 flow [2024-05-12 13:44:56,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 24 transitions, 51 flow [2024-05-12 13:44:56,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 13:44:56,697 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;@6dde8e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 13:44:56,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-05-12 13:44:56,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 13:44:56,704 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-05-12 13:44:56,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:44:56,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:56,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 13:44:56,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 13:44:56,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2102971857, now seen corresponding path program 1 times [2024-05-12 13:44:56,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:56,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947396250] [2024-05-12 13:44:56,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:56,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947396250] [2024-05-12 13:44:57,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947396250] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:57,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:57,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 13:44:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522645449] [2024-05-12 13:44:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:57,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:44:57,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:44:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:44:57,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2024-05-12 13:44:57,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:44:57,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:57,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2024-05-12 13:44:57,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:57,131 INFO L124 PetriNetUnfolderBase]: 29/99 cut-off events. [2024-05-12 13:44:57,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 13:44:57,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 99 events. 29/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 297 event pairs, 20 based on Foata normal form. 7/104 useless extension candidates. Maximal degree in co-relation 170. Up to 53 conditions per place. [2024-05-12 13:44:57,134 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 17 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2024-05-12 13:44:57,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 97 flow [2024-05-12 13:44:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:44:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:44:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-05-12 13:44:57,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-05-12 13:44:57,144 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 51 flow. Second operand 3 states and 48 transitions. [2024-05-12 13:44:57,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 97 flow [2024-05-12 13:44:57,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 13:44:57,148 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 61 flow [2024-05-12 13:44:57,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2024-05-12 13:44:57,153 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-05-12 13:44:57,153 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 61 flow [2024-05-12 13:44:57,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 13:44:57,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:57,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:57,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 13:44:57,155 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 13:44:57,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1712234662, now seen corresponding path program 1 times [2024-05-12 13:44:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:57,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955769788] [2024-05-12 13:44:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:57,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955769788] [2024-05-12 13:44:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955769788] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:57,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:57,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 13:44:57,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418084285] [2024-05-12 13:44:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:57,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 13:44:57,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:57,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 13:44:57,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 13:44:57,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-05-12 13:44:57,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-05-12 13:44:57,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:57,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-05-12 13:44:57,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:57,372 INFO L124 PetriNetUnfolderBase]: 34/116 cut-off events. [2024-05-12 13:44:57,375 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-05-12 13:44:57,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 116 events. 34/116 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 393 event pairs, 16 based on Foata normal form. 10/125 useless extension candidates. Maximal degree in co-relation 224. Up to 57 conditions per place. [2024-05-12 13:44:57,377 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 20 selfloop transitions, 4 changer transitions 10/40 dead transitions. [2024-05-12 13:44:57,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 170 flow [2024-05-12 13:44:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 13:44:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 13:44:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 71 transitions. [2024-05-12 13:44:57,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44375 [2024-05-12 13:44:57,385 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 61 flow. Second operand 5 states and 71 transitions. [2024-05-12 13:44:57,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 170 flow [2024-05-12 13:44:57,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 13:44:57,388 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 84 flow [2024-05-12 13:44:57,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2024-05-12 13:44:57,391 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2024-05-12 13:44:57,391 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 84 flow [2024-05-12 13:44:57,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-05-12 13:44:57,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:57,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:57,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 13:44:57,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 13:44:57,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash -511999812, now seen corresponding path program 1 times [2024-05-12 13:44:57,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:57,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406616641] [2024-05-12 13:44:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:57,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:57,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406616641] [2024-05-12 13:44:57,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406616641] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:57,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:57,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 13:44:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986670239] [2024-05-12 13:44:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:57,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:44:57,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:57,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:44:57,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:44:57,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2024-05-12 13:44:57,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-05-12 13:44:57,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:57,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2024-05-12 13:44:57,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:57,558 INFO L124 PetriNetUnfolderBase]: 20/78 cut-off events. [2024-05-12 13:44:57,558 INFO L125 PetriNetUnfolderBase]: For 39/41 co-relation queries the response was YES. [2024-05-12 13:44:57,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 78 events. 20/78 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 209 event pairs, 14 based on Foata normal form. 5/82 useless extension candidates. Maximal degree in co-relation 156. Up to 41 conditions per place. [2024-05-12 13:44:57,560 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 16 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-05-12 13:44:57,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 25 transitions, 109 flow [2024-05-12 13:44:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:44:57,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:44:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-05-12 13:44:57,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-05-12 13:44:57,562 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 84 flow. Second operand 3 states and 46 transitions. [2024-05-12 13:44:57,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 25 transitions, 109 flow [2024-05-12 13:44:57,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 93 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-05-12 13:44:57,564 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 57 flow [2024-05-12 13:44:57,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2024-05-12 13:44:57,566 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2024-05-12 13:44:57,567 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 57 flow [2024-05-12 13:44:57,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-05-12 13:44:57,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:57,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:57,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 13:44:57,570 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 13:44:57,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1294192601, now seen corresponding path program 1 times [2024-05-12 13:44:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:57,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755608552] [2024-05-12 13:44:57,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:57,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 13:44:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 13:44:57,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 13:44:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755608552] [2024-05-12 13:44:57,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755608552] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 13:44:57,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 13:44:57,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 13:44:57,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893422405] [2024-05-12 13:44:57,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 13:44:57,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 13:44:57,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 13:44:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 13:44:57,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 13:44:57,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-05-12 13:44:57,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-05-12 13:44:57,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 13:44:57,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-05-12 13:44:57,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 13:44:57,694 INFO L124 PetriNetUnfolderBase]: 11/54 cut-off events. [2024-05-12 13:44:57,694 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-05-12 13:44:57,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 54 events. 11/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 5 based on Foata normal form. 7/58 useless extension candidates. Maximal degree in co-relation 96. Up to 23 conditions per place. [2024-05-12 13:44:57,695 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 9 selfloop transitions, 3 changer transitions 9/27 dead transitions. [2024-05-12 13:44:57,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 105 flow [2024-05-12 13:44:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 13:44:57,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 13:44:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-05-12 13:44:57,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5520833333333334 [2024-05-12 13:44:57,698 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 57 flow. Second operand 3 states and 53 transitions. [2024-05-12 13:44:57,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 105 flow [2024-05-12 13:44:57,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 101 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 13:44:57,700 INFO L231 Difference]: Finished difference. Result has 29 places, 17 transitions, 46 flow [2024-05-12 13:44:57,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2024-05-12 13:44:57,702 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2024-05-12 13:44:57,702 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 46 flow [2024-05-12 13:44:57,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2024-05-12 13:44:57,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 13:44:57,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 13:44:57,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 13:44:57,703 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-05-12 13:44:57,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 13:44:57,704 INFO L85 PathProgramCache]: Analyzing trace with hash 869378505, now seen corresponding path program 1 times [2024-05-12 13:44:57,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 13:44:57,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273584699] [2024-05-12 13:44:57,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 13:44:57,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 13:44:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 13:44:57,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-05-12 13:44:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-05-12 13:44:57,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-05-12 13:44:57,771 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-05-12 13:44:57,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-05-12 13:44:57,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-05-12 13:44:57,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-05-12 13:44:57,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 13:44:57,777 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-05-12 13:44:57,786 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 13:44:57,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 13:44:57,833 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 13:44:57,833 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 13:44:57,834 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 01:44:57 BasicIcfg [2024-05-12 13:44:57,835 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 13:44:57,836 INFO L158 Benchmark]: Toolchain (without parser) took 2292.37ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 91.7MB in the beginning and 148.8MB in the end (delta: -57.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 13:44:57,836 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 13:44:57,837 INFO L158 Benchmark]: Witness Parser took 2.84ms. Allocated memory is still 159.4MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 13:44:57,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.03ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 111.6MB in the end (delta: -20.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-05-12 13:44:57,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.37ms. Allocated memory is still 159.4MB. Free memory was 111.6MB in the beginning and 110.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 13:44:57,840 INFO L158 Benchmark]: Boogie Preprocessor took 31.97ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 13:44:57,840 INFO L158 Benchmark]: RCFGBuilder took 427.41ms. Allocated memory is still 159.4MB. Free memory was 107.4MB in the beginning and 126.6MB in the end (delta: -19.2MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2024-05-12 13:44:57,840 INFO L158 Benchmark]: TraceAbstraction took 1280.91ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 125.9MB in the beginning and 148.8MB in the end (delta: -22.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-05-12 13:44:57,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 2.84ms. Allocated memory is still 159.4MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.03ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 111.6MB in the end (delta: -20.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.37ms. Allocated memory is still 159.4MB. Free memory was 111.6MB in the beginning and 110.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.97ms. Allocated memory is still 159.4MB. Free memory was 110.0MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.41ms. Allocated memory is still 159.4MB. Free memory was 107.4MB in the beginning and 126.6MB in the end (delta: -19.2MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1280.91ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 125.9MB in the beginning and 148.8MB in the end (delta: -22.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int mutex2_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L1] 0 //@ ghost int mutex1_locked = 0; [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] 0 //@ ghost multithreaded = 1; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L685] 1 //@ ghost mutex1_locked = 1; [L686] 1 //@ ghost mutex2_locked = 1; [L687] 1 glob1 = 5 VAL [\old(arg)={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L688] 1 //@ ghost mutex2_locked = 0; [L698] 0 //@ assert (!multithreaded || (((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && ((glob1 % 5) == 0)) && ((glob1 == 0) || (glob1 == 5)))); VAL [\old(arg)={0:0}, arg={0:0}, glob1=5, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L698] 0 //@ ghost mutex2_locked = 1; [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) VAL [\old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 47 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 3 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-05-12 13:44:57,866 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE