./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/sync01.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/sync01.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/pthread/sync01.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/sync01.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 10:32:29,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:32:29,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:32:29,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:32:29,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:32:29,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:32:29,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:32:29,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:32:29,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:32:29,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:32:29,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:32:29,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:32:29,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:32:29,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:32:29,492 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:32:29,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:32:29,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:32:29,492 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:32:29,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:32:29,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:32:29,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:32:29,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:32:29,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:32:29,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:32:29,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:32:29,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:32:29,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:32:29,494 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:32:29,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:32:29,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:32:29,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:32:29,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:32:29,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:32:29,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:32:29,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:32:29,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:32:29,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:32:29,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:32:29,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:32:29,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:32:29,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:32:29,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:32:29,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:32:29,757 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:32:29,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2024-05-12 10:32:30,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:32:30,966 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:32:30,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2024-05-12 10:32:30,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e2e74ea/bcde463dbcb54738b8818579a64b45ac/FLAGc30c89b9c [2024-05-12 10:32:30,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e2e74ea/bcde463dbcb54738b8818579a64b45ac [2024-05-12 10:32:31,001 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:32:31,001 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:32:31,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/sync01.yml/witness.yml [2024-05-12 10:32:31,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:32:31,095 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:32:31,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:32:31,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:32:31,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:32:31,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:32:31" (1/2) ... [2024-05-12 10:32:31,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bfe9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:32:31" (1/2) ... [2024-05-12 10:32:31,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5139145e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:32:31" (2/2) ... [2024-05-12 10:32:31,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bfe9e5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:31, skipping insertion in model container [2024-05-12 10:32:31,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:32:31" (2/2) ... [2024-05-12 10:32:31,106 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:32:31,150 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:32:31,152 INFO L97 edCorrectnessWitness]: Location invariant before [L961-L961] (! multithreaded || ((0 <= num && num <= 1) && (num == 0 || num == 1))) && (! multithreaded || (m_locked || ((0 <= num && num <= 1) && (num == 0 || num == 1)))) [2024-05-12 10:32:31,152 INFO L97 edCorrectnessWitness]: Location invariant before [L962-L962] (! multithreaded || ((0 <= num && num <= 1) && (num == 0 || num == 1))) && (! multithreaded || (m_locked || ((0 <= num && num <= 1) && (num == 0 || num == 1)))) [2024-05-12 10:32:31,152 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-05-12 10:32:31,152 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:32:31,152 INFO L106 edCorrectnessWitness]: ghost_update [L935-L935] m_locked = 1; [2024-05-12 10:32:31,153 INFO L106 edCorrectnessWitness]: ghost_update [L939-L939] m_locked = 0; [2024-05-12 10:32:31,153 INFO L106 edCorrectnessWitness]: ghost_update [L945-L945] m_locked = 1; [2024-05-12 10:32:31,153 INFO L106 edCorrectnessWitness]: ghost_update [L947-L947] m_locked = 0; [2024-05-12 10:32:31,153 INFO L106 edCorrectnessWitness]: ghost_update [L947-L947] m_locked = 1; [2024-05-12 10:32:31,154 INFO L106 edCorrectnessWitness]: ghost_update [L960-L960] multithreaded = 1; [2024-05-12 10:32:31,154 INFO L106 edCorrectnessWitness]: ghost_update [L937-L937] m_locked = 1; [2024-05-12 10:32:31,154 INFO L106 edCorrectnessWitness]: ghost_update [L937-L937] m_locked = 0; [2024-05-12 10:32:31,154 INFO L106 edCorrectnessWitness]: ghost_update [L949-L949] m_locked = 0; [2024-05-12 10:32:31,188 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:32:31,560 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2024-05-12 10:32:31,564 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:32:31,575 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:32:31,650 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2024-05-12 10:32:31,654 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:32:31,698 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:32:31,698 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:32:31 WrapperNode [2024-05-12 10:32:31,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:32:31,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:32:31,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:32:31,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:32:31,704 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,720 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,736 INFO L138 Inliner]: procedures = 269, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2024-05-12 10:32:31,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:32:31,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:32:31,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:32:31,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:32:31,745 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,746 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,749 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,759 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 5, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 2 writes are split as follows [0, 0, 1, 1]. [2024-05-12 10:32:31,771 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,771 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,778 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,780 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,782 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,783 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:32:31,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:32:31,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:32:31,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:32:31,786 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 10:32:31" (1/1) ... [2024-05-12 10:32:31,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:32:31,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:32:31,809 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 10:32:31,811 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 10:32:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:32:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:32:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 10:32:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:32:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-05-12 10:32:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-05-12 10:32:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:32:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:32:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 10:32:31,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:32:31,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:32:31,839 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 10:32:31,951 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:32:31,953 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:32:32,149 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:32:32,150 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 10:32:32,286 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 10:32:32,287 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-05-12 10:32:32,287 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:32:32 BoogieIcfgContainer [2024-05-12 10:32:32,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 10:32:32,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 10:32:32,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 10:32:32,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 10:32:32,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 10:32:31" (1/4) ... [2024-05-12 10:32:32,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104cb437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:32:32, skipping insertion in model container [2024-05-12 10:32:32,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:32:31" (2/4) ... [2024-05-12 10:32:32,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104cb437 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:32:32, skipping insertion in model container [2024-05-12 10:32:32,292 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 10:32:31" (3/4) ... [2024-05-12 10:32:32,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104cb437 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:32:32, skipping insertion in model container [2024-05-12 10:32:32,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:32:32" (4/4) ... [2024-05-12 10:32:32,294 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-05-12 10:32:32,306 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 10:32:32,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 10:32:32,307 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 10:32:32,350 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-05-12 10:32:32,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 40 transitions, 94 flow [2024-05-12 10:32:32,418 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2024-05-12 10:32:32,418 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-05-12 10:32:32,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 3/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-05-12 10:32:32,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 40 transitions, 94 flow [2024-05-12 10:32:32,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 82 flow [2024-05-12 10:32:32,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 10:32:32,494 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;@4afd7260, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 10:32:32,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-05-12 10:32:32,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 10:32:32,502 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-05-12 10:32:32,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:32:32,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:32:32,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-05-12 10:32:32,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:32:32,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:32:32,507 INFO L85 PathProgramCache]: Analyzing trace with hash 524356501, now seen corresponding path program 1 times [2024-05-12 10:32:32,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:32:32,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092203902] [2024-05-12 10:32:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:32:32,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:32:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:32:32,765 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 10:32:32,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:32:32,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092203902] [2024-05-12 10:32:32,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092203902] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:32:32,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:32:32,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 10:32:32,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497907539] [2024-05-12 10:32:32,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:32:32,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:32:32,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:32:32,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:32:32,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:32:32,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-05-12 10:32:32,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 82 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 10:32:32,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:32:32,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-05-12 10:32:32,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:32:32,943 INFO L124 PetriNetUnfolderBase]: 187/336 cut-off events. [2024-05-12 10:32:32,943 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-05-12 10:32:32,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 336 events. 187/336 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1234 event pairs, 76 based on Foata normal form. 16/325 useless extension candidates. Maximal degree in co-relation 627. Up to 240 conditions per place. [2024-05-12 10:32:32,948 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 27 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2024-05-12 10:32:32,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 142 flow [2024-05-12 10:32:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:32:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:32:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-05-12 10:32:32,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-05-12 10:32:32,959 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 82 flow. Second operand 3 states and 60 transitions. [2024-05-12 10:32:32,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 142 flow [2024-05-12 10:32:32,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-05-12 10:32:32,965 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 76 flow [2024-05-12 10:32:32,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2024-05-12 10:32:32,969 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-05-12 10:32:32,970 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 76 flow [2024-05-12 10:32:32,970 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 10:32:32,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:32:32,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:32:32,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 10:32:32,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-05-12 10:32:32,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:32:32,973 INFO L85 PathProgramCache]: Analyzing trace with hash 840598084, now seen corresponding path program 1 times [2024-05-12 10:32:32,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:32:32,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863199874] [2024-05-12 10:32:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:32:32,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:32:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:32:33,103 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 10:32:33,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:32:33,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863199874] [2024-05-12 10:32:33,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863199874] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:32:33,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:32:33,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:32:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297312266] [2024-05-12 10:32:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:32:33,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-05-12 10:32:33,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:32:33,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-05-12 10:32:33,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-05-12 10:32:33,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2024-05-12 10:32:33,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 10:32:33,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:32:33,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2024-05-12 10:32:33,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:32:33,229 INFO L124 PetriNetUnfolderBase]: 156/291 cut-off events. [2024-05-12 10:32:33,230 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-05-12 10:32:33,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 291 events. 156/291 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1027 event pairs, 59 based on Foata normal form. 43/328 useless extension candidates. Maximal degree in co-relation 206. Up to 180 conditions per place. [2024-05-12 10:32:33,236 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-05-12 10:32:33,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 142 flow [2024-05-12 10:32:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 10:32:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 10:32:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-05-12 10:32:33,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-05-12 10:32:33,239 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 76 flow. Second operand 4 states and 66 transitions. [2024-05-12 10:32:33,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 142 flow [2024-05-12 10:32:33,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:32:33,241 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-05-12 10:32:33,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-05-12 10:32:33,241 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2024-05-12 10:32:33,242 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-05-12 10:32:33,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 10:32:33,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-05-12 10:32:33,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-05-12 10:32:33,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-05-12 10:32:33,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-05-12 10:32:33,245 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-05-12 10:32:33,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 10:32:33,245 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-05-12 10:32:33,250 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 10:32:33,251 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 10:32:33,257 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-05-12 10:32:33,258 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-05-12 10:32:33,258 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 10:32:33 BasicIcfg [2024-05-12 10:32:33,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 10:32:33,259 INFO L158 Benchmark]: Toolchain (without parser) took 2164.13ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 108.8MB in the beginning and 157.9MB in the end (delta: -49.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,259 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:32:33,261 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 112.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:32:33,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.31ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 71.5MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.83ms. Allocated memory is still 151.0MB. Free memory was 71.5MB in the beginning and 68.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,264 INFO L158 Benchmark]: Boogie Preprocessor took 47.59ms. Allocated memory is still 151.0MB. Free memory was 68.9MB in the beginning and 66.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,264 INFO L158 Benchmark]: RCFGBuilder took 501.99ms. Allocated memory is still 151.0MB. Free memory was 66.6MB in the beginning and 108.2MB in the end (delta: -41.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,264 INFO L158 Benchmark]: TraceAbstraction took 969.99ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 107.4MB in the beginning and 157.9MB in the end (delta: -50.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-05-12 10:32:33,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 151.0MB. Free memory is still 112.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.31ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 71.5MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.83ms. Allocated memory is still 151.0MB. Free memory was 71.5MB in the beginning and 68.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.59ms. Allocated memory is still 151.0MB. Free memory was 68.9MB in the beginning and 66.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.99ms. Allocated memory is still 151.0MB. Free memory was 66.6MB in the beginning and 108.2MB in the end (delta: -41.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 969.99ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 107.4MB in the beginning and 157.9MB in the end (delta: -50.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 962]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 966]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 58 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-12 10:32:33,295 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