./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/36-apron_21-traces-cluster-based_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/36-apron_21-traces-cluster-based_true.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/36-apron_21-traces-cluster-based_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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 23:02:54,269 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 23:02:54,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 23:02:54,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 23:02:54,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 23:02:54,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 23:02:54,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 23:02:54,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 23:02:54,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 23:02:54,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 23:02:54,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 23:02:54,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 23:02:54,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 23:02:54,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 23:02:54,357 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 23:02:54,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 23:02:54,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 23:02:54,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 23:02:54,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 23:02:54,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 23:02:54,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 23:02:54,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 23:02:54,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 23:02:54,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 23:02:54,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 23:02:54,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 23:02:54,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 23:02:54,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 23:02:54,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 23:02:54,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 23:02:54,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 23:02:54,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 23:02:54,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:02:54,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 23:02:54,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 23:02:54,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 23:02:54,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 23:02:54,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 23:02:54,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 23:02:54,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 23:02:54,365 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 23:02:54,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 23:02:54,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 23:02:54,366 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 23:02:54,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 23:02:54,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 23:02:54,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 23:02:54,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 23:02:54,594 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 23:02:54,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-06-27 23:02:55,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 23:02:55,931 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 23:02:55,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-06-27 23:02:55,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea6ec9f5/1238255d992e42d7a313063f24866a1f/FLAG30e0b7533 [2024-06-27 23:02:56,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ea6ec9f5/1238255d992e42d7a313063f24866a1f [2024-06-27 23:02:56,002 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 23:02:56,002 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 23:02:56,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/36-apron_21-traces-cluster-based_true.yml/witness.yml [2024-06-27 23:02:56,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 23:02:56,116 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 23:02:56,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 23:02:56,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 23:02:56,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 23:02:56,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:02:56" (1/2) ... [2024-06-27 23:02:56,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58dbb8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:02:56, skipping insertion in model container [2024-06-27 23:02:56,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 11:02:56" (1/2) ... [2024-06-27 23:02:56,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5fd38da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 11:02:56, skipping insertion in model container [2024-06-27 23:02:56,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:02:56" (2/2) ... [2024-06-27 23:02:56,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58dbb8b9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56, skipping insertion in model container [2024-06-27 23:02:56,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:02:56" (2/2) ... [2024-06-27 23:02:56,124 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 23:02:56,165 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 23:02:56,167 INFO L97 edCorrectnessWitness]: Location invariant before [L730-L730] (! multithreaded || (B_locked || ((0LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) && (! multithreaded || (A_locked || ((17LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) [2024-06-27 23:02:56,167 INFO L97 edCorrectnessWitness]: Location invariant before [L729-L729] (! multithreaded || (B_locked || ((0LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) && (! multithreaded || (A_locked || ((17LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) [2024-06-27 23:02:56,167 INFO L97 edCorrectnessWitness]: Location invariant before [L728-L728] (! multithreaded || (B_locked || ((0LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) && (! multithreaded || (A_locked || ((17LL - (long long )g) + (long long )h >= 0LL && (long long )g - (long long )h >= 0LL))) [2024-06-27 23:02:56,167 INFO L103 edCorrectnessWitness]: ghost_variable A_locked = 0 [2024-06-27 23:02:56,167 INFO L103 edCorrectnessWitness]: ghost_variable B_locked = 0 [2024-06-27 23:02:56,168 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 23:02:56,168 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] A_locked = 0; [2024-06-27 23:02:56,168 INFO L106 edCorrectnessWitness]: ghost_update [L730-L730] A_locked = 1; [2024-06-27 23:02:56,168 INFO L106 edCorrectnessWitness]: ghost_update [L697-L697] B_locked = 0; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L727-L727] multithreaded = 1; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L719-L719] B_locked = 0; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] A_locked = 1; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] B_locked = 1; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L735-L735] B_locked = 0; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L736-L736] A_locked = 0; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L696-L696] A_locked = 0; [2024-06-27 23:02:56,169 INFO L106 edCorrectnessWitness]: ghost_update [L718-L718] A_locked = 0; [2024-06-27 23:02:56,170 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] A_locked = 1; [2024-06-27 23:02:56,170 INFO L106 edCorrectnessWitness]: ghost_update [L714-L714] B_locked = 1; [2024-06-27 23:02:56,170 INFO L106 edCorrectnessWitness]: ghost_update [L694-L694] A_locked = 1; [2024-06-27 23:02:56,170 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] A_locked = 0; [2024-06-27 23:02:56,170 INFO L106 edCorrectnessWitness]: ghost_update [L715-L715] A_locked = 1; [2024-06-27 23:02:56,171 INFO L106 edCorrectnessWitness]: ghost_update [L733-L733] B_locked = 1; [2024-06-27 23:02:56,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 23:02:56,446 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:02:56,463 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 23:02:56,568 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 23:02:56,596 INFO L206 MainTranslator]: Completed translation [2024-06-27 23:02:56,597 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56 WrapperNode [2024-06-27 23:02:56,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 23:02:56,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 23:02:56,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 23:02:56,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 23:02:56,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,645 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 163 [2024-06-27 23:02:56,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 23:02:56,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 23:02:56,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 23:02:56,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 23:02:56,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,682 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 23:02:56,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 23:02:56,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 23:02:56,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 23:02:56,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 23:02:56,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (1/1) ... [2024-06-27 23:02:56,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 23:02:56,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 23:02:56,754 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 23:02:56,772 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 23:02:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-06-27 23:02:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-06-27 23:02:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 23:02:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 23:02:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-06-27 23:02:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-06-27 23:02:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-06-27 23:02:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-06-27 23:02:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 23:02:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 23:02:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 23:02:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 23:02:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 23:02:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 23:02:56,793 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 23:02:56,920 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 23:02:56,922 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 23:02:57,148 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 23:02:57,148 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 23:02:57,331 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 23:02:57,331 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 23:02:57,332 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:02:57 BoogieIcfgContainer [2024-06-27 23:02:57,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 23:02:57,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 23:02:57,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 23:02:57,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 23:02:57,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 11:02:56" (1/4) ... [2024-06-27 23:02:57,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf07522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 11:02:57, skipping insertion in model container [2024-06-27 23:02:57,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 11:02:56" (2/4) ... [2024-06-27 23:02:57,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf07522 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:02:57, skipping insertion in model container [2024-06-27 23:02:57,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 11:02:56" (3/4) ... [2024-06-27 23:02:57,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf07522 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 11:02:57, skipping insertion in model container [2024-06-27 23:02:57,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 11:02:57" (4/4) ... [2024-06-27 23:02:57,340 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2024-06-27 23:02:57,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 23:02:57,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-27 23:02:57,356 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 23:02:57,401 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 23:02:57,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 122 flow [2024-06-27 23:02:57,465 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2024-06-27 23:02:57,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:02:57,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-06-27 23:02:57,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 55 transitions, 122 flow [2024-06-27 23:02:57,473 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 52 transitions, 113 flow [2024-06-27 23:02:57,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 23:02:57,490 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;@78d3ff40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 23:02:57,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-27 23:02:57,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 23:02:57,497 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-27 23:02:57,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 23:02:57,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:02:57,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 23:02:57,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:02:57,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:02:57,502 INFO L85 PathProgramCache]: Analyzing trace with hash 462425250, now seen corresponding path program 1 times [2024-06-27 23:02:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:02:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132371217] [2024-06-27 23:02:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:02:57,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:02:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:02:57,780 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 23:02:57,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:02:57,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132371217] [2024-06-27 23:02:57,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132371217] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:02:57,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:02:57,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 23:02:57,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808355981] [2024-06-27 23:02:57,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:02:57,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:02:57,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:02:57,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:02:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 23:02:57,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 55 [2024-06-27 23:02:57,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 23:02:57,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:02:57,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 55 [2024-06-27 23:02:57,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:02:59,511 INFO L124 PetriNetUnfolderBase]: 14383/22082 cut-off events. [2024-06-27 23:02:59,512 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-06-27 23:02:59,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42462 conditions, 22082 events. 14383/22082 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 149580 event pairs, 5668 based on Foata normal form. 240/22155 useless extension candidates. Maximal degree in co-relation 42450. Up to 12602 conditions per place. [2024-06-27 23:02:59,584 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 51 selfloop transitions, 2 changer transitions 16/79 dead transitions. [2024-06-27 23:02:59,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 309 flow [2024-06-27 23:02:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:02:59,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:02:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-06-27 23:02:59,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-06-27 23:02:59,595 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 113 flow. Second operand 3 states and 113 transitions. [2024-06-27 23:02:59,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 309 flow [2024-06-27 23:02:59,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 304 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 23:02:59,604 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 106 flow [2024-06-27 23:02:59,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2024-06-27 23:02:59,608 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2024-06-27 23:02:59,608 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 106 flow [2024-06-27 23:02:59,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 23:02:59,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:02:59,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:02:59,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 23:02:59,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:02:59,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:02:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1910808476, now seen corresponding path program 1 times [2024-06-27 23:02:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:02:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237678210] [2024-06-27 23:02:59,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:02:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:02:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:02:59,735 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 23:02:59,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:02:59,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237678210] [2024-06-27 23:02:59,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237678210] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:02:59,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:02:59,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:02:59,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809859417] [2024-06-27 23:02:59,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:02:59,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:02:59,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:02:59,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:02:59,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:02:59,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 55 [2024-06-27 23:02:59,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 23:02:59,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:02:59,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 55 [2024-06-27 23:02:59,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:00,394 INFO L124 PetriNetUnfolderBase]: 5400/8750 cut-off events. [2024-06-27 23:03:00,394 INFO L125 PetriNetUnfolderBase]: For 587/587 co-relation queries the response was YES. [2024-06-27 23:03:00,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17763 conditions, 8750 events. 5400/8750 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 54989 event pairs, 1475 based on Foata normal form. 249/8945 useless extension candidates. Maximal degree in co-relation 17750. Up to 2747 conditions per place. [2024-06-27 23:03:00,428 INFO L140 encePairwiseOnDemand]: 38/55 looper letters, 80 selfloop transitions, 16 changer transitions 0/105 dead transitions. [2024-06-27 23:03:00,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 105 transitions, 440 flow [2024-06-27 23:03:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:03:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:03:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2024-06-27 23:03:00,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2024-06-27 23:03:00,438 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 106 flow. Second operand 6 states and 177 transitions. [2024-06-27 23:03:00,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 105 transitions, 440 flow [2024-06-27 23:03:00,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 105 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 23:03:00,444 INFO L231 Difference]: Finished difference. Result has 59 places, 58 transitions, 221 flow [2024-06-27 23:03:00,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2024-06-27 23:03:00,445 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2024-06-27 23:03:00,445 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 221 flow [2024-06-27 23:03:00,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 23:03:00,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:00,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:00,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 23:03:00,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:03:00,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash -919140284, now seen corresponding path program 1 times [2024-06-27 23:03:00,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:00,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261551835] [2024-06-27 23:03:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:00,507 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 23:03:00,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:00,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261551835] [2024-06-27 23:03:00,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261551835] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:00,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:03:00,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:03:00,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761712081] [2024-06-27 23:03:00,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:00,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:03:00,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:00,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:03:00,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:03:00,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 55 [2024-06-27 23:03:00,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 23:03:00,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:00,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 55 [2024-06-27 23:03:00,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:01,124 INFO L124 PetriNetUnfolderBase]: 4932/8043 cut-off events. [2024-06-27 23:03:01,124 INFO L125 PetriNetUnfolderBase]: For 4805/4879 co-relation queries the response was YES. [2024-06-27 23:03:01,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21037 conditions, 8043 events. 4932/8043 cut-off events. For 4805/4879 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 50388 event pairs, 1366 based on Foata normal form. 99/8095 useless extension candidates. Maximal degree in co-relation 21020. Up to 3263 conditions per place. [2024-06-27 23:03:01,163 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 89 selfloop transitions, 12 changer transitions 0/110 dead transitions. [2024-06-27 23:03:01,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 110 transitions, 598 flow [2024-06-27 23:03:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 23:03:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 23:03:01,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2024-06-27 23:03:01,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060606060606061 [2024-06-27 23:03:01,165 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 221 flow. Second operand 6 states and 167 transitions. [2024-06-27 23:03:01,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 110 transitions, 598 flow [2024-06-27 23:03:01,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 23:03:01,169 INFO L231 Difference]: Finished difference. Result has 64 places, 62 transitions, 281 flow [2024-06-27 23:03:01,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=64, PETRI_TRANSITIONS=62} [2024-06-27 23:03:01,169 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-06-27 23:03:01,170 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 62 transitions, 281 flow [2024-06-27 23:03:01,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 23:03:01,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:01,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 23:03:01,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 23:03:01,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:03:01,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -860195902, now seen corresponding path program 1 times [2024-06-27 23:03:01,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:01,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619177607] [2024-06-27 23:03:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:01,242 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 23:03:01,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619177607] [2024-06-27 23:03:01,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619177607] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:01,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:03:01,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:03:01,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787541439] [2024-06-27 23:03:01,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:01,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 23:03:01,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:01,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 23:03:01,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 23:03:01,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 55 [2024-06-27 23:03:01,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 62 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 23:03:01,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:01,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 55 [2024-06-27 23:03:01,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:01,707 INFO L124 PetriNetUnfolderBase]: 4332/7118 cut-off events. [2024-06-27 23:03:01,708 INFO L125 PetriNetUnfolderBase]: For 7426/7496 co-relation queries the response was YES. [2024-06-27 23:03:01,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19896 conditions, 7118 events. 4332/7118 cut-off events. For 7426/7496 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 43827 event pairs, 1264 based on Foata normal form. 283/7393 useless extension candidates. Maximal degree in co-relation 19877. Up to 2451 conditions per place. [2024-06-27 23:03:01,735 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 69 selfloop transitions, 4 changer transitions 25/108 dead transitions. [2024-06-27 23:03:01,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 108 transitions, 638 flow [2024-06-27 23:03:01,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 23:03:01,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 23:03:01,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-06-27 23:03:01,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5236363636363637 [2024-06-27 23:03:01,737 INFO L175 Difference]: Start difference. First operand has 64 places, 62 transitions, 281 flow. Second operand 5 states and 144 transitions. [2024-06-27 23:03:01,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 108 transitions, 638 flow [2024-06-27 23:03:01,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 108 transitions, 623 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 23:03:01,742 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 232 flow [2024-06-27 23:03:01,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-06-27 23:03:01,743 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-06-27 23:03:01,743 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 232 flow [2024-06-27 23:03:01,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 23:03:01,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:01,744 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, 1, 1, 1, 1, 1] [2024-06-27 23:03:01,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 23:03:01,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:03:01,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1475795204, now seen corresponding path program 1 times [2024-06-27 23:03:01,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:01,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430599213] [2024-06-27 23:03:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:01,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:01,807 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 23:03:01,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:01,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430599213] [2024-06-27 23:03:01,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430599213] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:01,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:03:01,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 23:03:01,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943808886] [2024-06-27 23:03:01,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:01,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 23:03:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:01,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 23:03:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 23:03:01,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-06-27 23:03:01,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:03:01,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:01,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-06-27 23:03:01,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:02,158 INFO L124 PetriNetUnfolderBase]: 2741/4660 cut-off events. [2024-06-27 23:03:02,158 INFO L125 PetriNetUnfolderBase]: For 3945/3979 co-relation queries the response was YES. [2024-06-27 23:03:02,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12680 conditions, 4660 events. 2741/4660 cut-off events. For 3945/3979 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 27411 event pairs, 1425 based on Foata normal form. 80/4714 useless extension candidates. Maximal degree in co-relation 12661. Up to 2844 conditions per place. [2024-06-27 23:03:02,177 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 62 selfloop transitions, 13 changer transitions 2/88 dead transitions. [2024-06-27 23:03:02,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 523 flow [2024-06-27 23:03:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 23:03:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 23:03:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-06-27 23:03:02,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-06-27 23:03:02,178 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 232 flow. Second operand 3 states and 108 transitions. [2024-06-27 23:03:02,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 523 flow [2024-06-27 23:03:02,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 88 transitions, 512 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-06-27 23:03:02,188 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 334 flow [2024-06-27 23:03:02,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-06-27 23:03:02,189 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2024-06-27 23:03:02,190 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 334 flow [2024-06-27 23:03:02,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 23:03:02,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 23:03:02,190 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, 1, 1, 1, 1, 1] [2024-06-27 23:03:02,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 23:03:02,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-27 23:03:02,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 23:03:02,190 INFO L85 PathProgramCache]: Analyzing trace with hash -905917814, now seen corresponding path program 2 times [2024-06-27 23:03:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 23:03:02,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590945821] [2024-06-27 23:03:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 23:03:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 23:03:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 23:03:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 23:03:02,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 23:03:02,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590945821] [2024-06-27 23:03:02,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590945821] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 23:03:02,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 23:03:02,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 23:03:02,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950230633] [2024-06-27 23:03:02,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 23:03:02,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 23:03:02,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 23:03:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 23:03:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-27 23:03:02,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-06-27 23:03:02,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 23:03:02,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 23:03:02,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-06-27 23:03:02,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 23:03:02,550 INFO L124 PetriNetUnfolderBase]: 1664/2864 cut-off events. [2024-06-27 23:03:02,550 INFO L125 PetriNetUnfolderBase]: For 3891/3937 co-relation queries the response was YES. [2024-06-27 23:03:02,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8241 conditions, 2864 events. 1664/2864 cut-off events. For 3891/3937 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 16073 event pairs, 408 based on Foata normal form. 88/2949 useless extension candidates. Maximal degree in co-relation 8230. Up to 2061 conditions per place. [2024-06-27 23:03:02,558 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-06-27 23:03:02,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 378 flow [2024-06-27 23:03:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 23:03:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 23:03:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-06-27 23:03:02,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5181818181818182 [2024-06-27 23:03:02,559 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 334 flow. Second operand 4 states and 114 transitions. [2024-06-27 23:03:02,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 378 flow [2024-06-27 23:03:02,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 64 transitions, 354 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-27 23:03:02,563 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-27 23:03:02,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-27 23:03:02,565 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-06-27 23:03:02,566 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-27 23:03:02,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 23:03:02,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-27 23:03:02,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-27 23:03:02,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-27 23:03:02,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-27 23:03:02,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-27 23:03:02,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-27 23:03:02,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 23:03:02,570 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-06-27 23:03:02,572 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 23:03:02,572 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 23:03:02,576 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-27 23:03:02,577 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-27 23:03:02,577 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 11:03:02 BasicIcfg [2024-06-27 23:03:02,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 23:03:02,580 INFO L158 Benchmark]: Toolchain (without parser) took 6461.81ms. Allocated memory was 176.2MB in the beginning and 960.5MB in the end (delta: 784.3MB). Free memory was 117.6MB in the beginning and 654.3MB in the end (delta: -536.7MB). Peak memory consumption was 672.7MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,582 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 23:03:02,582 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 23:03:02,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.22ms. Allocated memory is still 176.2MB. Free memory was 117.6MB in the beginning and 88.7MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.80ms. Allocated memory is still 176.2MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,582 INFO L158 Benchmark]: Boogie Preprocessor took 65.74ms. Allocated memory is still 176.2MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,583 INFO L158 Benchmark]: RCFGBuilder took 616.57ms. Allocated memory is still 176.2MB. Free memory was 83.6MB in the beginning and 128.1MB in the end (delta: -44.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,583 INFO L158 Benchmark]: TraceAbstraction took 5243.13ms. Allocated memory was 176.2MB in the beginning and 960.5MB in the end (delta: 784.3MB). Free memory was 127.3MB in the beginning and 654.3MB in the end (delta: -527.0MB). Peak memory consumption was 680.5MB. Max. memory is 16.1GB. [2024-06-27 23:03:02,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 144.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.22ms. Allocated memory is still 176.2MB. Free memory was 117.6MB in the beginning and 88.7MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.80ms. Allocated memory is still 176.2MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.74ms. Allocated memory is still 176.2MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 616.57ms. Allocated memory is still 176.2MB. Free memory was 83.6MB in the beginning and 128.1MB in the end (delta: -44.6MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5243.13ms. Allocated memory was 176.2MB in the beginning and 960.5MB in the end (delta: 784.3MB). Free memory was 127.3MB in the beginning and 654.3MB in the end (delta: -527.0MB). Peak memory consumption was 680.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 728]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 729]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 730]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 90 locations, 6 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: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 299 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 706 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 5 mSDtfsCounter, 706 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=5, InterpolantAutomatonStates: 27, 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, 0.6s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-06-27 23:03:02,607 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