./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_35-traces-ex-2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i ./goblint.2024-06-19_11-23-25.files/protection/13-privatized_35-traces-ex-2_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 18:01:24,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 18:01:24,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 18:01:24,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 18:01:24,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 18:01:24,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 18:01:24,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 18:01:24,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 18:01:24,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 18:01:24,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 18:01:24,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 18:01:24,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 18:01:24,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 18:01:24,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 18:01:24,453 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 18:01:24,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 18:01:24,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 18:01:24,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 18:01:24,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 18:01:24,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 18:01:24,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 18:01:24,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 18:01:24,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 18:01:24,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 18:01:24,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 18:01:24,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 18:01:24,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 18:01:24,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 18:01:24,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 18:01:24,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 18:01:24,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 18:01:24,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 18:01:24,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:24,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 18:01:24,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 18:01:24,459 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 18:01:24,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 18:01:24,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 18:01:24,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-27 18:01:24,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 18:01:24,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 18:01:24,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 18:01:24,730 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 18:01:24,730 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 18:01:24,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/13-privatized_35-traces-ex-2_true.yml/witness.yml [2024-06-27 18:01:24,807 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 18:01:24,807 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 18:01:24,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2024-06-27 18:01:25,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 18:01:26,407 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 18:01:26,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_35-traces-ex-2_true.i [2024-06-27 18:01:26,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7455b7514/24c694e8f2b74a7da082a08eb24f06f7/FLAG090ba3c76 [2024-06-27 18:01:26,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7455b7514/24c694e8f2b74a7da082a08eb24f06f7 [2024-06-27 18:01:26,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 18:01:26,469 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 18:01:26,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:26,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 18:01:26,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 18:01:26,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:24" (1/2) ... [2024-06-27 18:01:26,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5751b444 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:26, skipping insertion in model container [2024-06-27 18:01:26,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:24" (1/2) ... [2024-06-27 18:01:26,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39b4084f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 06:01:26, skipping insertion in model container [2024-06-27 18:01:26,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:26" (2/2) ... [2024-06-27 18:01:26,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5751b444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26, skipping insertion in model container [2024-06-27 18:01:26,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 06:01:26" (2/2) ... [2024-06-27 18:01:26,513 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 18:01:26,534 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 18:01:26,535 INFO L97 edCorrectnessWitness]: Location invariant before [L698-L698] ! multithreaded || (g == 0 || g == 1) [2024-06-27 18:01:26,535 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 18:01:26,535 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 18:01:26,536 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 18:01:26,536 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] B_locked = 1; [2024-06-27 18:01:26,536 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-06-27 18:01:26,536 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-27 18:01:26,536 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] multithreaded = 1; [2024-06-27 18:01:26,536 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L701-L701] A_locked = 0; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] B_locked = 0; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-06-27 18:01:26,537 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] A_locked = 1; [2024-06-27 18:01:26,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 18:01:26,691 WARN L247 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_35-traces-ex-2_true.i[1088,1101] [2024-06-27 18:01:26,772 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:26,782 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-27 18:01:26,834 WARN L247 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_35-traces-ex-2_true.i[1088,1101] 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 [2024-06-27 18:01:26,898 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 18:01:26,938 INFO L206 MainTranslator]: Completed translation [2024-06-27 18:01:26,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26 WrapperNode [2024-06-27 18:01:26,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 18:01:26,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:26,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 18:01:26,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 18:01:26,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:26,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:26,994 INFO L138 Inliner]: procedures = 162, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2024-06-27 18:01:26,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 18:01:26,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 18:01:26,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 18:01:26,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 18:01:27,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,034 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 18:01:27,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 18:01:27,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 18:01:27,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 18:01:27,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 18:01:27,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (1/1) ... [2024-06-27 18:01:27,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 18:01:27,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 18:01:27,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-27 18:01:27,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-27 18:01:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 18:01:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 18:01:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 18:01:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 18:01:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 18:01:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 18:01:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 18:01:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 18:01:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 18:01:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 18:01:27,174 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 18:01:27,272 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 18:01:27,274 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 18:01:27,390 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 18:01:27,390 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 18:01:27,479 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 18:01:27,480 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 18:01:27,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:27 BoogieIcfgContainer [2024-06-27 18:01:27,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 18:01:27,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 18:01:27,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 18:01:27,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 18:01:27,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 06:01:24" (1/4) ... [2024-06-27 18:01:27,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2983d66d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 06:01:27, skipping insertion in model container [2024-06-27 18:01:27,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 06:01:26" (2/4) ... [2024-06-27 18:01:27,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2983d66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:27, skipping insertion in model container [2024-06-27 18:01:27,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 06:01:26" (3/4) ... [2024-06-27 18:01:27,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2983d66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 06:01:27, skipping insertion in model container [2024-06-27 18:01:27,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 06:01:27" (4/4) ... [2024-06-27 18:01:27,487 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_35-traces-ex-2_true.i [2024-06-27 18:01:27,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 18:01:27,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 18:01:27,503 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 18:01:27,527 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 18:01:27,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:27,573 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-06-27 18:01:27,574 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 1/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-06-27 18:01:27,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 70 flow [2024-06-27 18:01:27,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 53 flow [2024-06-27 18:01:27,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 18:01:27,591 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;@6e7f4b55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 18:01:27,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-06-27 18:01:27,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 18:01:27,596 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 18:01:27,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 18:01:27,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:27,597 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 18:01:27,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:27,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash 212975802, now seen corresponding path program 1 times [2024-06-27 18:01:27,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552895310] [2024-06-27 18:01:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:27,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:27,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552895310] [2024-06-27 18:01:27,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552895310] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:27,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:27,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 18:01:27,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122470126] [2024-06-27 18:01:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:27,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:27,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:27,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:27,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 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) [2024-06-27 18:01:27,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:27,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:27,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:27,846 INFO L124 PetriNetUnfolderBase]: 38/124 cut-off events. [2024-06-27 18:01:27,846 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-27 18:01:27,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 124 events. 38/124 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 430 event pairs, 26 based on Foata normal form. 7/128 useless extension candidates. Maximal degree in co-relation 215. Up to 64 conditions per place. [2024-06-27 18:01:27,848 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 17 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2024-06-27 18:01:27,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-06-27 18:01:27,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-06-27 18:01:27,863 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 57 transitions. [2024-06-27 18:01:27,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 101 flow [2024-06-27 18:01:27,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 18:01:27,867 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:27,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2024-06-27 18:01:27,872 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-06-27 18:01:27,872 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 63 flow [2024-06-27 18:01:27,872 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) [2024-06-27 18:01:27,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:27,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:27,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 18:01:27,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:27,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:27,874 INFO L85 PathProgramCache]: Analyzing trace with hash 505797241, now seen corresponding path program 1 times [2024-06-27 18:01:27,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:27,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201080134] [2024-06-27 18:01:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:27,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201080134] [2024-06-27 18:01:27,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201080134] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:27,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 18:01:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689896695] [2024-06-27 18:01:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:27,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:27,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:27,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:27,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-06-27 18:01:27,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-06-27 18:01:27,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:27,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-06-27 18:01:27,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:27,973 INFO L124 PetriNetUnfolderBase]: 36/114 cut-off events. [2024-06-27 18:01:27,973 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-06-27 18:01:27,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 114 events. 36/114 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 373 event pairs, 24 based on Foata normal form. 3/115 useless extension candidates. Maximal degree in co-relation 211. Up to 61 conditions per place. [2024-06-27 18:01:27,975 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 17 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-06-27 18:01:27,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-06-27 18:01:27,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-06-27 18:01:27,977 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 63 flow. Second operand 3 states and 56 transitions. [2024-06-27 18:01:27,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 105 flow [2024-06-27 18:01:27,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 18:01:27,978 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:27,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2024-06-27 18:01:27,979 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2024-06-27 18:01:27,979 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 54 flow [2024-06-27 18:01:27,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-06-27 18:01:27,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:27,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:27,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 18:01:27,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:27,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1637807820, now seen corresponding path program 1 times [2024-06-27 18:01:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238013613] [2024-06-27 18:01:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:28,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:28,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238013613] [2024-06-27 18:01:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238013613] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694698206] [2024-06-27 18:01:28,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 18:01:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:28,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 18:01:28,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 18:01:28,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 18:01:28,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:28,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:28,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 18:01:28,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:28,161 INFO L124 PetriNetUnfolderBase]: 41/129 cut-off events. [2024-06-27 18:01:28,162 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-27 18:01:28,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 129 events. 41/129 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 445 event pairs, 22 based on Foata normal form. 10/137 useless extension candidates. Maximal degree in co-relation 242. Up to 59 conditions per place. [2024-06-27 18:01:28,163 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 17 selfloop transitions, 3 changer transitions 10/38 dead transitions. [2024-06-27 18:01:28,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-06-27 18:01:28,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-06-27 18:01:28,165 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 54 flow. Second operand 5 states and 82 transitions. [2024-06-27 18:01:28,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 38 transitions, 146 flow [2024-06-27 18:01:28,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:28,166 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:28,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, 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=5, PETRI_FLOW=65, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-06-27 18:01:28,167 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places. [2024-06-27 18:01:28,167 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 65 flow [2024-06-27 18:01:28,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:28,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:28,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:28,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 18:01:28,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:28,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:28,169 INFO L85 PathProgramCache]: Analyzing trace with hash 259295461, now seen corresponding path program 1 times [2024-06-27 18:01:28,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37346897] [2024-06-27 18:01:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:28,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:28,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:28,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37346897] [2024-06-27 18:01:28,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37346897] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:28,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:28,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 18:01:28,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193653695] [2024-06-27 18:01:28,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:28,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 18:01:28,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:28,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 18:01:28,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 18:01:28,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-27 18:01:28,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:28,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:28,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-27 18:01:28,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:28,290 INFO L124 PetriNetUnfolderBase]: 15/71 cut-off events. [2024-06-27 18:01:28,291 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 18:01:28,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 71 events. 15/71 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 5 based on Foata normal form. 9/76 useless extension candidates. Maximal degree in co-relation 132. Up to 29 conditions per place. [2024-06-27 18:01:28,292 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 8 selfloop transitions, 3 changer transitions 10/29 dead transitions. [2024-06-27 18:01:28,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 115 flow [2024-06-27 18:01:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 18:01:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 18:01:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-06-27 18:01:28,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-06-27 18:01:28,293 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 65 flow. Second operand 3 states and 62 transitions. [2024-06-27 18:01:28,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 115 flow [2024-06-27 18:01:28,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 105 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-06-27 18:01:28,295 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2024-06-27 18:01:28,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, 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=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2024-06-27 18:01:28,296 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2024-06-27 18:01:28,306 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2024-06-27 18:01:28,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 18:01:28,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 18:01:28,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 18:01:28,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 18:01:28,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-27 18:01:28,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 18:01:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1362370985, now seen corresponding path program 1 times [2024-06-27 18:01:28,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 18:01:28,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395137067] [2024-06-27 18:01:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 18:01:28,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 18:01:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 18:01:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 18:01:28,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 18:01:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395137067] [2024-06-27 18:01:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395137067] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 18:01:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 18:01:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 18:01:28,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038456318] [2024-06-27 18:01:28,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 18:01:28,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 18:01:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 18:01:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 18:01:28,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-06-27 18:01:28,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 18:01:28,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 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) [2024-06-27 18:01:28,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 18:01:28,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 18:01:28,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 18:01:28,660 INFO L124 PetriNetUnfolderBase]: 5/30 cut-off events. [2024-06-27 18:01:28,660 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 18:01:28,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 30 events. 5/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 54. Up to 9 conditions per place. [2024-06-27 18:01:28,661 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2024-06-27 18:01:28,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 78 flow [2024-06-27 18:01:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 18:01:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 18:01:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2024-06-27 18:01:28,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-06-27 18:01:28,663 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 5 states and 66 transitions. [2024-06-27 18:01:28,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 78 flow [2024-06-27 18:01:28,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 71 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 18:01:28,664 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2024-06-27 18:01:28,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2024-06-27 18:01:28,664 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -6 predicate places. [2024-06-27 18:01:28,664 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2024-06-27 18:01:28,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 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) [2024-06-27 18:01:28,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-06-27 18:01:28,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-06-27 18:01:28,668 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-06-27 18:01:28,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 18:01:28,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-06-27 18:01:28,671 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 18:01:28,671 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 18:01:28,675 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-27 18:01:28,675 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-27 18:01:28,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 06:01:28 BasicIcfg [2024-06-27 18:01:28,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 18:01:28,676 INFO L158 Benchmark]: Toolchain (without parser) took 2207.63ms. Allocated memory was 138.4MB in the beginning and 257.9MB in the end (delta: 119.5MB). Free memory was 78.6MB in the beginning and 201.8MB in the end (delta: -123.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:28,677 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:28,677 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:28,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.05ms. Allocated memory was 138.4MB in the beginning and 257.9MB in the end (delta: 119.5MB). Free memory was 78.4MB in the beginning and 220.6MB in the end (delta: -142.1MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-06-27 18:01:28,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.87ms. Allocated memory is still 257.9MB. Free memory was 220.6MB in the beginning and 218.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:28,678 INFO L158 Benchmark]: Boogie Preprocessor took 58.65ms. Allocated memory is still 257.9MB. Free memory was 218.5MB in the beginning and 216.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 18:01:28,678 INFO L158 Benchmark]: RCFGBuilder took 425.17ms. Allocated memory is still 257.9MB. Free memory was 216.4MB in the beginning and 189.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-06-27 18:01:28,679 INFO L158 Benchmark]: TraceAbstraction took 1194.17ms. Allocated memory is still 257.9MB. Free memory was 188.1MB in the beginning and 201.8MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 18:01:28,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.05ms. Allocated memory was 138.4MB in the beginning and 257.9MB in the end (delta: 119.5MB). Free memory was 78.4MB in the beginning and 220.6MB in the end (delta: -142.1MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.87ms. Allocated memory is still 257.9MB. Free memory was 220.6MB in the beginning and 218.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.65ms. Allocated memory is still 257.9MB. Free memory was 218.5MB in the beginning and 216.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.17ms. Allocated memory is still 257.9MB. Free memory was 216.4MB in the beginning and 189.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1194.17ms. Allocated memory is still 257.9MB. Free memory was 188.1MB in the beginning and 201.8MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: 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 3 procedures, 48 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, 81 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 215 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 8 mSDtfsCounter, 215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 207 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 18:01:28,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE