./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/elimination_backoff_stack.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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-complex/elimination_backoff_stack.i ./goblint.2024-05-21_14-57-05.files/protection/elimination_backoff_stack.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 17:33:18,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 17:33:18,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 17:33:18,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 17:33:18,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 17:33:18,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 17:33:18,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 17:33:18,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 17:33:18,683 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 17:33:18,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 17:33:18,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 17:33:18,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 17:33:18,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 17:33:18,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 17:33:18,689 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 17:33:18,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 17:33:18,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 17:33:18,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 17:33:18,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 17:33:18,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 17:33:18,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 17:33:18,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 17:33:18,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 17:33:18,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 17:33:18,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 17:33:18,691 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 17:33:18,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 17:33:18,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 17:33:18,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 17:33:18,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 17:33:18,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 17:33:18,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 17:33:18,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 17:33:18,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 17:33:18,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 17:33:18,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 17:33:18,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 17:33:18,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 17:33:18,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 17:33:18,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 17:33:18,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 17:33:18,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 17:33:18,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 17:33:18,695 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 17:33:18,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 17:33:18,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 17:33:18,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 17:33:18,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 17:33:18,925 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 17:33:18,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2024-06-20 17:33:19,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 17:33:20,242 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 17:33:20,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2024-06-20 17:33:20,265 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03bac22fa/39fd198686714708a9a629205dd38ef2/FLAG1f072dfb3 [2024-06-20 17:33:20,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03bac22fa/39fd198686714708a9a629205dd38ef2 [2024-06-20 17:33:20,278 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 17:33:20,278 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 17:33:20,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/elimination_backoff_stack.yml/witness.yml [2024-06-20 17:33:20,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 17:33:20,363 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 17:33:20,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 17:33:20,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 17:33:20,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 17:33:20,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 05:33:20" (1/2) ... [2024-06-20 17:33:20,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5823b0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 05:33:20, skipping insertion in model container [2024-06-20 17:33:20,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 05:33:20" (1/2) ... [2024-06-20 17:33:20,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23049a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 05:33:20, skipping insertion in model container [2024-06-20 17:33:20,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:33:20" (2/2) ... [2024-06-20 17:33:20,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5823b0e0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:20, skipping insertion in model container [2024-06-20 17:33:20,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:33:20" (2/2) ... [2024-06-20 17:33:20,372 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 17:33:20,411 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1618-L1618] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1615-L1615] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1620-L1620] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1621-L1621] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1617-L1617] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,412 INFO L97 edCorrectnessWitness]: Location invariant before [L1616-L1616] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,413 INFO L97 edCorrectnessWitness]: Location invariant before [L1619-L1619] ! multithreaded || 0 <= unique_id [2024-06-20 17:33:20,413 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 17:33:20,413 INFO L106 edCorrectnessWitness]: ghost_update [L1614-L1614] multithreaded = 1; [2024-06-20 17:33:20,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 17:33:20,939 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 17:33:20,952 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 [2024-06-20 17:33:21,062 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 17:33:21,159 INFO L206 MainTranslator]: Completed translation [2024-06-20 17:33:21,160 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21 WrapperNode [2024-06-20 17:33:21,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 17:33:21,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 17:33:21,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 17:33:21,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 17:33:21,167 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 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,198 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 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,272 INFO L138 Inliner]: procedures = 396, calls = 191, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 3782 [2024-06-20 17:33:21,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 17:33:21,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 17:33:21,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 17:33:21,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 17:33:21,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,498 INFO L175 MemorySlicer]: Split 686 memory accesses to 9 slices as follows [2, 22, 113, 36, 28, 22, 25, 86, 352]. 51 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 1, 8, 4, 2, 2, 3, 1, 0]. The 289 writes are split as follows [0, 7, 56, 25, 6, 3, 4, 29, 159]. [2024-06-20 17:33:21,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 17:33:21,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 17:33:21,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 17:33:21,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 17:33:21,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (1/1) ... [2024-06-20 17:33:21,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 17:33:21,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 17:33:21,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-20 17:33:21,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-20 17:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 17:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 17:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 17:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 17:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-06-20 17:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-06-20 17:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-06-20 17:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-06-20 17:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-06-20 17:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-06-20 17:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-06-20 17:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 17:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-06-20 17:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-06-20 17:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-06-20 17:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-06-20 17:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2024-06-20 17:33:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2024-06-20 17:33:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2024-06-20 17:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2024-06-20 17:33:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2024-06-20 17:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 17:33:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 17:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-06-20 17:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-06-20 17:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-06-20 17:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-06-20 17:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-06-20 17:33:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-06-20 17:33:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-06-20 17:33:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-06-20 17:33:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-06-20 17:33:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-06-20 17:33:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-06-20 17:33:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-06-20 17:33:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-06-20 17:33:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-06-20 17:33:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2024-06-20 17:33:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2024-06-20 17:33:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2024-06-20 17:33:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2024-06-20 17:33:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2024-06-20 17:33:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2024-06-20 17:33:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2024-06-20 17:33:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2024-06-20 17:33:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 17:33:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 17:33:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-06-20 17:33:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-06-20 17:33:21,699 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 17:33:22,052 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 17:33:22,053 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 17:33:24,579 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 17:33:24,579 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 17:33:26,746 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 17:33:26,746 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 17:33:26,746 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 05:33:26 BoogieIcfgContainer [2024-06-20 17:33:26,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 17:33:26,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 17:33:26,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 17:33:26,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 17:33:26,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 05:33:20" (1/4) ... [2024-06-20 17:33:26,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab108f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 05:33:26, skipping insertion in model container [2024-06-20 17:33:26,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 05:33:20" (2/4) ... [2024-06-20 17:33:26,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab108f5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 05:33:26, skipping insertion in model container [2024-06-20 17:33:26,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 05:33:21" (3/4) ... [2024-06-20 17:33:26,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab108f5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 05:33:26, skipping insertion in model container [2024-06-20 17:33:26,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 05:33:26" (4/4) ... [2024-06-20 17:33:26,753 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2024-06-20 17:33:26,766 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 17:33:26,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-06-20 17:33:26,767 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 17:33:27,186 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-20 17:33:27,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 514 transitions, 1056 flow [2024-06-20 17:33:27,609 INFO L124 PetriNetUnfolderBase]: 98/507 cut-off events. [2024-06-20 17:33:27,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 17:33:27,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 507 events. 98/507 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2569 event pairs, 0 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 516. Up to 5 conditions per place. [2024-06-20 17:33:27,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 514 transitions, 1056 flow [2024-06-20 17:33:27,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 507 transitions, 1035 flow [2024-06-20 17:33:27,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 17:33:27,660 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;@7fc281d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 17:33:27,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-06-20 17:33:27,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 17:33:27,673 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 17:33:27,673 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 17:33:27,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 17:33:27,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 17:33:27,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 11 more)] === [2024-06-20 17:33:27,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 17:33:27,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1137347449, now seen corresponding path program 1 times [2024-06-20 17:33:27,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 17:33:27,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540722287] [2024-06-20 17:33:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 17:33:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 17:33:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 17:33:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 17:33:28,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 17:33:28,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540722287] [2024-06-20 17:33:28,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540722287] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 17:33:28,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 17:33:28,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 17:33:28,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523141067] [2024-06-20 17:33:28,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 17:33:28,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 17:33:28,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 17:33:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 17:33:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 17:33:28,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 514 [2024-06-20 17:33:28,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 507 transitions, 1035 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-20 17:33:28,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 17:33:28,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 514 [2024-06-20 17:33:28,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand