./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b44c8288 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i ./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_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-wip.fs.witness-ghost-b44c828-m [2024-05-12 10:49:07,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-05-12 10:49:07,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-05-12 10:49:07,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-05-12 10:49:07,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-05-12 10:49:07,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-05-12 10:49:07,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-05-12 10:49:07,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-05-12 10:49:07,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-05-12 10:49:07,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-05-12 10:49:07,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-05-12 10:49:07,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-05-12 10:49:07,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-05-12 10:49:07,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-05-12 10:49:07,355 INFO L153 SettingsManager]: * Use SBE=true [2024-05-12 10:49:07,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-05-12 10:49:07,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-05-12 10:49:07,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-05-12 10:49:07,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-05-12 10:49:07,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-05-12 10:49:07,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-05-12 10:49:07,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-05-12 10:49:07,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-05-12 10:49:07,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-05-12 10:49:07,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-05-12 10:49:07,357 INFO L153 SettingsManager]: * sizeof long double=12 [2024-05-12 10:49:07,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-05-12 10:49:07,358 INFO L153 SettingsManager]: * Use constant arrays=true [2024-05-12 10:49:07,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-05-12 10:49:07,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-05-12 10:49:07,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-05-12 10:49:07,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-05-12 10:49:07,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:49:07,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-05-12 10:49:07,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-05-12 10:49:07,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-05-12 10:49:07,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-05-12 10:49:07,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-05-12 10:49:07,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-05-12 10:49:07,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-05-12 10:49:07,361 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-05-12 10:49:07,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-05-12 10:49:07,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-05-12 10:49:07,382 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-05-12 10:49:07,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-05-12 10:49:07,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-05-12 10:49:07,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-05-12 10:49:07,626 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-05-12 10:49:07,627 INFO L274 PluginConnector]: Witness Parser initialized [2024-05-12 10:49:07,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-07_14-17-48.files/mutex-meet/13-privatized_30-traces-oplus-vs-meet_true.yml/witness.yml [2024-05-12 10:49:07,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-05-12 10:49:07,718 INFO L274 PluginConnector]: CDTParser initialized [2024-05-12 10:49:07,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-05-12 10:49:08,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-05-12 10:49:08,945 INFO L384 CDTParser]: Found 1 translation units. [2024-05-12 10:49:08,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2024-05-12 10:49:08,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0346e806/75d1a3e915354235ab0f1d94c7f18dcd/FLAGe5e924b28 [2024-05-12 10:49:08,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0346e806/75d1a3e915354235ab0f1d94c7f18dcd [2024-05-12 10:49:08,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-05-12 10:49:08,978 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-05-12 10:49:08,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-05-12 10:49:08,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-05-12 10:49:08,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-05-12 10:49:08,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:07" (1/2) ... [2024-05-12 10:49:08,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d0922 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:49:08, skipping insertion in model container [2024-05-12 10:49:08,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:07" (1/2) ... [2024-05-12 10:49:08,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@857a307 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.05 10:49:08, skipping insertion in model container [2024-05-12 10:49:08,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:49:08" (2/2) ... [2024-05-12 10:49:08,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d0922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:08, skipping insertion in model container [2024-05-12 10:49:08,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.05 10:49:08" (2/2) ... [2024-05-12 10:49:08,990 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-05-12 10:49:09,023 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-05-12 10:49:09,024 INFO L97 edCorrectnessWitness]: Location invariant before [L699-L699] ((! multithreaded || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))) && (! multithreaded || (B_locked || ((((0 <= g && g <= 5) && g <= 127) && g % 5 == 0) && (g == 0 || g == 5))))) && (! multithreaded || (A_locked || g == 0)) [2024-05-12 10:49:09,025 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-05-12 10:49:09,025 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-05-12 10:49:09,025 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-05-12 10:49:09,025 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] B_locked = 0; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] A_locked = 1; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] B_locked = 1; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L685-L685] A_locked = 1; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] A_locked = 0; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L702-L702] A_locked = 0; [2024-05-12 10:49:09,026 INFO L106 edCorrectnessWitness]: ghost_update [L691-L691] B_locked = 0; [2024-05-12 10:49:09,027 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] B_locked = 1; [2024-05-12 10:49:09,027 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] multithreaded = 1; [2024-05-12 10:49:09,027 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-05-12 10:49:09,027 INFO L106 edCorrectnessWitness]: ghost_update [L688-L688] B_locked = 0; [2024-05-12 10:49:09,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-05-12 10:49:09,179 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2024-05-12 10:49:09,271 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:49:09,280 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:49:09,306 WARN L246 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-05-12 10:49:09,380 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-05-12 10:49:09,415 INFO L206 MainTranslator]: Completed translation [2024-05-12 10:49:09,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09 WrapperNode [2024-05-12 10:49:09,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-05-12 10:49:09,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-05-12 10:49:09,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-05-12 10:49:09,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-05-12 10:49:09,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,472 INFO L138 Inliner]: procedures = 163, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-05-12 10:49:09,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-05-12 10:49:09,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-05-12 10:49:09,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-05-12 10:49:09,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-05-12 10:49:09,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,514 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-05-12 10:49:09,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-05-12 10:49:09,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-05-12 10:49:09,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-05-12 10:49:09,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-05-12 10:49:09,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (1/1) ... [2024-05-12 10:49:09,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-05-12 10:49:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-05-12 10:49:09,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-05-12 10:49:09,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-05-12 10:49:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-05-12 10:49:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-05-12 10:49:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-05-12 10:49:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-05-12 10:49:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-05-12 10:49:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-05-12 10:49:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-05-12 10:49:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-05-12 10:49:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-05-12 10:49:09,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-05-12 10:49:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-05-12 10:49:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-05-12 10:49:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-05-12 10:49:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-05-12 10:49:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-05-12 10:49:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-05-12 10:49:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-05-12 10:49:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-05-12 10:49:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-05-12 10:49:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-05-12 10:49:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-05-12 10:49:09,606 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-05-12 10:49:09,715 INFO L244 CfgBuilder]: Building ICFG [2024-05-12 10:49:09,717 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-05-12 10:49:09,918 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-05-12 10:49:09,918 INFO L293 CfgBuilder]: Performing block encoding [2024-05-12 10:49:10,011 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-05-12 10:49:10,011 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-05-12 10:49:10,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:49:10 BoogieIcfgContainer [2024-05-12 10:49:10,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-05-12 10:49:10,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-05-12 10:49:10,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-05-12 10:49:10,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-05-12 10:49:10,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.05 10:49:07" (1/4) ... [2024-05-12 10:49:10,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54448b43 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 12.05 10:49:10, skipping insertion in model container [2024-05-12 10:49:10,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.05 10:49:08" (2/4) ... [2024-05-12 10:49:10,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54448b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:49:10, skipping insertion in model container [2024-05-12 10:49:10,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.05 10:49:09" (3/4) ... [2024-05-12 10:49:10,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54448b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.05 10:49:10, skipping insertion in model container [2024-05-12 10:49:10,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.05 10:49:10" (4/4) ... [2024-05-12 10:49:10,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2024-05-12 10:49:10,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-05-12 10:49:10,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-05-12 10:49:10,033 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-05-12 10:49:10,069 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-05-12 10:49:10,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 41 transitions, 89 flow [2024-05-12 10:49:10,121 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-05-12 10:49:10,121 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:49:10,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 2/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-05-12 10:49:10,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 41 transitions, 89 flow [2024-05-12 10:49:10,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 65 flow [2024-05-12 10:49:10,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-05-12 10:49:10,141 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;@65fedf33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-05-12 10:49:10,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-05-12 10:49:10,146 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-05-12 10:49:10,146 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-05-12 10:49:10,146 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:49:10,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:10,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-05-12 10:49:10,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:10,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash 253772, now seen corresponding path program 1 times [2024-05-12 10:49:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:10,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776689597] [2024-05-12 10:49:10,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:10,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:10,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:10,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776689597] [2024-05-12 10:49:10,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776689597] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:10,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:10,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-05-12 10:49:10,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904563090] [2024-05-12 10:49:10,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:49:10,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:49:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:49:10,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-05-12 10:49:10,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:10,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:10,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-05-12 10:49:10,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:10,479 INFO L124 PetriNetUnfolderBase]: 45/137 cut-off events. [2024-05-12 10:49:10,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-05-12 10:49:10,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 137 events. 45/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 450 event pairs, 45 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 235. Up to 109 conditions per place. [2024-05-12 10:49:10,482 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 18 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2024-05-12 10:49:10,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 99 flow [2024-05-12 10:49:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:49:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:49:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-05-12 10:49:10,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2024-05-12 10:49:10,493 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 65 flow. Second operand 3 states and 54 transitions. [2024-05-12 10:49:10,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 99 flow [2024-05-12 10:49:10,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-05-12 10:49:10,497 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 62 flow [2024-05-12 10:49:10,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-05-12 10:49:10,503 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2024-05-12 10:49:10,504 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 62 flow [2024-05-12 10:49:10,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:10,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:10,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:10,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-05-12 10:49:10,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:10,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 181541709, now seen corresponding path program 1 times [2024-05-12 10:49:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:10,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080061170] [2024-05-12 10:49:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:10,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:10,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080061170] [2024-05-12 10:49:10,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080061170] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:10,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:10,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-05-12 10:49:10,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863558389] [2024-05-12 10:49:10,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:10,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:49:10,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:10,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:49:10,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:49:10,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 10:49:10,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:10,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:10,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 10:49:10,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:10,770 INFO L124 PetriNetUnfolderBase]: 38/127 cut-off events. [2024-05-12 10:49:10,770 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-05-12 10:49:10,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 127 events. 38/127 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. 7/132 useless extension candidates. Maximal degree in co-relation 223. Up to 67 conditions per place. [2024-05-12 10:49:10,788 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 20 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-05-12 10:49:10,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 32 transitions, 116 flow [2024-05-12 10:49:10,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:49:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:49:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2024-05-12 10:49:10,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-05-12 10:49:10,791 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 62 flow. Second operand 3 states and 66 transitions. [2024-05-12 10:49:10,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 32 transitions, 116 flow [2024-05-12 10:49:10,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:49:10,792 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 69 flow [2024-05-12 10:49:10,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2024-05-12 10:49:10,792 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2024-05-12 10:49:10,793 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 69 flow [2024-05-12 10:49:10,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:10,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:10,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:10,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-05-12 10:49:10,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:10,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1172341655, now seen corresponding path program 1 times [2024-05-12 10:49:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004869110] [2024-05-12 10:49:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:11,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:11,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004869110] [2024-05-12 10:49:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004869110] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:11,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658627203] [2024-05-12 10:49:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:11,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:11,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:11,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:11,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 10:49:11,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:11,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 10:49:11,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:11,138 INFO L124 PetriNetUnfolderBase]: 43/153 cut-off events. [2024-05-12 10:49:11,139 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-05-12 10:49:11,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 153 events. 43/153 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 556 event pairs, 8 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 276. Up to 45 conditions per place. [2024-05-12 10:49:11,140 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 27 selfloop transitions, 10 changer transitions 0/46 dead transitions. [2024-05-12 10:49:11,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 181 flow [2024-05-12 10:49:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-05-12 10:49:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-05-12 10:49:11,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-05-12 10:49:11,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526829268292683 [2024-05-12 10:49:11,146 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 69 flow. Second operand 5 states and 108 transitions. [2024-05-12 10:49:11,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 181 flow [2024-05-12 10:49:11,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 46 transitions, 175 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-05-12 10:49:11,152 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 121 flow [2024-05-12 10:49:11,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-05-12 10:49:11,153 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 5 predicate places. [2024-05-12 10:49:11,153 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 121 flow [2024-05-12 10:49:11,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:11,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:11,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-05-12 10:49:11,154 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:11,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1503389098, now seen corresponding path program 1 times [2024-05-12 10:49:11,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:11,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174718882] [2024-05-12 10:49:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:11,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:11,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174718882] [2024-05-12 10:49:11,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174718882] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:11,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:11,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:11,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958996020] [2024-05-12 10:49:11,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:11,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:11,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-05-12 10:49:11,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 121 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:11,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-05-12 10:49:11,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:11,397 INFO L124 PetriNetUnfolderBase]: 42/149 cut-off events. [2024-05-12 10:49:11,397 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-05-12 10:49:11,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 149 events. 42/149 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 529 event pairs, 10 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 348. Up to 51 conditions per place. [2024-05-12 10:49:11,400 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 25 selfloop transitions, 8 changer transitions 0/42 dead transitions. [2024-05-12 10:49:11,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 208 flow [2024-05-12 10:49:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-05-12 10:49:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-05-12 10:49:11,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2024-05-12 10:49:11,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45934959349593496 [2024-05-12 10:49:11,404 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 121 flow. Second operand 6 states and 113 transitions. [2024-05-12 10:49:11,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 208 flow [2024-05-12 10:49:11,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 201 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-05-12 10:49:11,406 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 124 flow [2024-05-12 10:49:11,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-05-12 10:49:11,408 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2024-05-12 10:49:11,408 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 124 flow [2024-05-12 10:49:11,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:11,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:11,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-05-12 10:49:11,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:11,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:11,410 INFO L85 PathProgramCache]: Analyzing trace with hash 4884800, now seen corresponding path program 1 times [2024-05-12 10:49:11,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223915950] [2024-05-12 10:49:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:11,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:11,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223915950] [2024-05-12 10:49:11,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223915950] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:11,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:11,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:11,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899717612] [2024-05-12 10:49:11,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:11,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:11,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:11,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-05-12 10:49:11,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:11,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-05-12 10:49:11,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:11,588 INFO L124 PetriNetUnfolderBase]: 47/161 cut-off events. [2024-05-12 10:49:11,588 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-05-12 10:49:11,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 161 events. 47/161 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 608 event pairs, 14 based on Foata normal form. 18/178 useless extension candidates. Maximal degree in co-relation 414. Up to 68 conditions per place. [2024-05-12 10:49:11,589 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 28 selfloop transitions, 5 changer transitions 17/57 dead transitions. [2024-05-12 10:49:11,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 57 transitions, 328 flow [2024-05-12 10:49:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-05-12 10:49:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-05-12 10:49:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 113 transitions. [2024-05-12 10:49:11,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39372822299651566 [2024-05-12 10:49:11,591 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 124 flow. Second operand 7 states and 113 transitions. [2024-05-12 10:49:11,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 57 transitions, 328 flow [2024-05-12 10:49:11,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 57 transitions, 301 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-05-12 10:49:11,595 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 122 flow [2024-05-12 10:49:11,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-05-12 10:49:11,597 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2024-05-12 10:49:11,597 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 122 flow [2024-05-12 10:49:11,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:11,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:11,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-05-12 10:49:11,598 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:11,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 723040350, now seen corresponding path program 1 times [2024-05-12 10:49:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437793574] [2024-05-12 10:49:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:11,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437793574] [2024-05-12 10:49:11,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437793574] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:11,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:11,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-05-12 10:49:11,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429432516] [2024-05-12 10:49:11,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:11,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-05-12 10:49:11,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:11,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-05-12 10:49:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-05-12 10:49:11,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-05-12 10:49:11,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:11,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-05-12 10:49:11,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:11,686 INFO L124 PetriNetUnfolderBase]: 6/44 cut-off events. [2024-05-12 10:49:11,686 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-05-12 10:49:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 44 events. 6/44 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 2 based on Foata normal form. 10/52 useless extension candidates. Maximal degree in co-relation 109. Up to 19 conditions per place. [2024-05-12 10:49:11,688 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 11 selfloop transitions, 3 changer transitions 5/27 dead transitions. [2024-05-12 10:49:11,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 141 flow [2024-05-12 10:49:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-05-12 10:49:11,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-05-12 10:49:11,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-05-12 10:49:11,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5203252032520326 [2024-05-12 10:49:11,689 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 122 flow. Second operand 3 states and 64 transitions. [2024-05-12 10:49:11,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 141 flow [2024-05-12 10:49:11,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 125 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-05-12 10:49:11,691 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 67 flow [2024-05-12 10:49:11,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=67, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2024-05-12 10:49:11,693 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2024-05-12 10:49:11,693 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 67 flow [2024-05-12 10:49:11,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-05-12 10:49:11,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:11,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-05-12 10:49:11,694 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-05-12 10:49:11,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-05-12 10:49:11,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1556095235, now seen corresponding path program 1 times [2024-05-12 10:49:11,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-05-12 10:49:11,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94632888] [2024-05-12 10:49:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-05-12 10:49:11,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-05-12 10:49:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-05-12 10:49:11,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-05-12 10:49:11,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-05-12 10:49:11,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94632888] [2024-05-12 10:49:11,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94632888] provided 1 perfect and 0 imperfect interpolant sequences [2024-05-12 10:49:11,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-05-12 10:49:11,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-05-12 10:49:11,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253517968] [2024-05-12 10:49:11,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-05-12 10:49:11,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-05-12 10:49:11,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-05-12 10:49:11,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-05-12 10:49:11,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-05-12 10:49:11,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-05-12 10:49:11,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-05-12 10:49:11,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-05-12 10:49:11,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-05-12 10:49:11,839 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2024-05-12 10:49:11,839 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-05-12 10:49:11,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 29 events. 4/29 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 56. Up to 14 conditions per place. [2024-05-12 10:49:11,839 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-05-12 10:49:11,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 81 flow [2024-05-12 10:49:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-05-12 10:49:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-05-12 10:49:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-05-12 10:49:11,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451219512195122 [2024-05-12 10:49:11,840 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 67 flow. Second operand 4 states and 73 transitions. [2024-05-12 10:49:11,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 81 flow [2024-05-12 10:49:11,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 67 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-05-12 10:49:11,841 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-05-12 10:49:11,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-05-12 10:49:11,843 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -9 predicate places. [2024-05-12 10:49:11,843 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-05-12 10:49:11,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-05-12 10:49:11,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-05-12 10:49:11,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-05-12 10:49:11,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-05-12 10:49:11,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-05-12 10:49:11,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-05-12 10:49:11,846 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-05-12 10:49:11,849 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-05-12 10:49:11,849 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-05-12 10:49:11,853 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-05-12 10:49:11,853 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-05-12 10:49:11,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.05 10:49:11 BasicIcfg [2024-05-12 10:49:11,854 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-05-12 10:49:11,855 INFO L158 Benchmark]: Toolchain (without parser) took 2877.42ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 105.7MB in the beginning and 109.4MB in the end (delta: -3.7MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,855 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:49:11,855 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-05-12 10:49:11,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.12ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 79.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.48ms. Allocated memory is still 163.6MB. Free memory was 79.1MB in the beginning and 77.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,856 INFO L158 Benchmark]: Boogie Preprocessor took 68.35ms. Allocated memory is still 163.6MB. Free memory was 77.1MB in the beginning and 74.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,857 INFO L158 Benchmark]: RCFGBuilder took 469.67ms. Allocated memory is still 163.6MB. Free memory was 74.7MB in the beginning and 116.7MB in the end (delta: -42.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,857 INFO L158 Benchmark]: TraceAbstraction took 1841.74ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 116.0MB in the beginning and 109.4MB in the end (delta: 6.6MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-05-12 10:49:11,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.12ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 79.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.48ms. Allocated memory is still 163.6MB. Free memory was 79.1MB in the beginning and 77.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.35ms. Allocated memory is still 163.6MB. Free memory was 77.1MB in the beginning and 74.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.67ms. Allocated memory is still 163.6MB. Free memory was 74.7MB in the beginning and 116.7MB in the end (delta: -42.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1841.74ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 116.0MB in the beginning and 109.4MB in the end (delta: 6.6MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 699]: 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, 55 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 6 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 0.8s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-05-12 10:49:11,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE