./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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/weaver/parallel-ticket-5.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.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-cde23df-m [2024-06-14 14:18:47,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:18:47,432 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:18:47,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:18:47,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:18:47,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:18:47,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:18:47,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:18:47,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:18:47,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:18:47,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:18:47,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:18:47,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:18:47,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:18:47,480 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:18:47,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:18:47,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:18:47,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:18:47,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:18:47,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:18:47,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:18:47,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:18:47,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:18:47,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:18:47,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:18:47,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:18:47,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:18:47,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:18:47,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:18:47,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:18:47,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:18:47,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:18:47,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:47,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:18:47,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:18:47,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:18:47,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:18:47,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:18:47,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:18:47,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:18:47,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:18:47,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:18:47,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:18:47,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:18:47,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:18:47,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:18:47,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:18:47,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:18:47,790 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:18:47,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-14 14:18:48,952 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:18:49,148 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:18:49,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-14 14:18:49,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a17d9be/fa6726606b5840af86bc301ad3dd64a7/FLAG41d5dac7e [2024-06-14 14:18:49,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a17d9be/fa6726606b5840af86bc301ad3dd64a7 [2024-06-14 14:18:49,179 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:18:49,179 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:18:49,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml [2024-06-14 14:18:49,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:18:49,297 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:18:49,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:49,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:18:49,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:18:49,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:49" (1/2) ... [2024-06-14 14:18:49,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc0e227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:49, skipping insertion in model container [2024-06-14 14:18:49,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:49" (1/2) ... [2024-06-14 14:18:49,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64760b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:49, skipping insertion in model container [2024-06-14 14:18:49,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:49" (2/2) ... [2024-06-14 14:18:49,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc0e227 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49, skipping insertion in model container [2024-06-14 14:18:49,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:49" (2/2) ... [2024-06-14 14:18:49,308 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:18:49,325 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:18:49,326 INFO L97 edCorrectnessWitness]: Location invariant before [L159-L159] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-14 14:18:49,326 INFO L97 edCorrectnessWitness]: Location invariant before [L157-L157] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-14 14:18:49,327 INFO L97 edCorrectnessWitness]: Location invariant before [L158-L158] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-14 14:18:49,327 INFO L97 edCorrectnessWitness]: Location invariant before [L160-L160] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-14 14:18:49,327 INFO L97 edCorrectnessWitness]: Location invariant before [L161-L161] ! multithreaded || ((((((((2147483648LL + (long long )b) + (long long )s >= 0LL && (2147483648LL + (long long )b) + (long long )x >= 0LL) && (4294967296LL + (long long )s) + (long long )x >= 0LL) && (2147483649LL - (long long )b) + (long long )s >= 0LL) && (2147483649LL - (long long )b) + (long long )x >= 0LL) && (2147483647LL + (long long )b) - (long long )x >= 0LL) && (4294967295LL + (long long )s) - (long long )x >= 0LL) && (2147483648LL - (long long )b) - (long long )x >= 0LL) [2024-06-14 14:18:49,327 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:18:49,327 INFO L106 edCorrectnessWitness]: ghost_update [L156-L156] multithreaded = 1; [2024-06-14 14:18:49,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:18:49,571 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:49,584 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 [2024-06-14 14:18:49,660 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:49,675 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:18:49,675 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49 WrapperNode [2024-06-14 14:18:49,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:49,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:49,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:18:49,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:18:49,683 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 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,702 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 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,734 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 232 [2024-06-14 14:18:49,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:49,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:18:49,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:18:49,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:18:49,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,769 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-14 14:18:49,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:18:49,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:18:49,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:18:49,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:18:49,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (1/1) ... [2024-06-14 14:18:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:49,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:18:49,874 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) [2024-06-14 14:18:49,923 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 [2024-06-14 14:18:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:18:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:18:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:18:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:18:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:18:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:18:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:18:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:18:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:18:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:18:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-14 14:18:49,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-14 14:18:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:18:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:18:49,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:18:49,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:18:49,965 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:18:50,081 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:18:50,084 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:18:50,409 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:18:50,410 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:18:50,650 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:18:50,650 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:18:50,651 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:50 BoogieIcfgContainer [2024-06-14 14:18:50,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:18:50,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:18:50,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:18:50,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:18:50,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:18:49" (1/4) ... [2024-06-14 14:18:50,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e95b8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:18:50, skipping insertion in model container [2024-06-14 14:18:50,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:49" (2/4) ... [2024-06-14 14:18:50,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e95b8a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:18:50, skipping insertion in model container [2024-06-14 14:18:50,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:49" (3/4) ... [2024-06-14 14:18:50,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e95b8a2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:18:50, skipping insertion in model container [2024-06-14 14:18:50,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:50" (4/4) ... [2024-06-14 14:18:50,665 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-06-14 14:18:50,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:18:50,682 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-14 14:18:50,682 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:18:50,751 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-14 14:18:50,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 65 transitions, 165 flow [2024-06-14 14:18:50,841 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2024-06-14 14:18:50,841 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-14 14:18:50,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 60 events. 0/60 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:18:50,844 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 65 transitions, 165 flow [2024-06-14 14:18:50,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 53 transitions, 121 flow [2024-06-14 14:18:50,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:18:50,868 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;@58223987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:18:50,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-06-14 14:18:50,874 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:18:50,874 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-14 14:18:50,874 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:18:50,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:50,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:18:50,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-14 14:18:50,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:50,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1424460519, now seen corresponding path program 1 times [2024-06-14 14:18:50,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:50,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413971570] [2024-06-14 14:18:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:18:51,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:51,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413971570] [2024-06-14 14:18:51,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413971570] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:51,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:51,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:18:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672055205] [2024-06-14 14:18:51,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:51,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:18:51,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:18:51,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:18:51,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 65 [2024-06-14 14:18:51,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 53 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-06-14 14:18:51,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:51,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 65 [2024-06-14 14:18:51,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:00,358 INFO L124 PetriNetUnfolderBase]: 87503/111664 cut-off events. [2024-06-14 14:19:00,359 INFO L125 PetriNetUnfolderBase]: For 1165/1165 co-relation queries the response was YES. [2024-06-14 14:19:00,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225784 conditions, 111664 events. 87503/111664 cut-off events. For 1165/1165 co-relation queries the response was YES. Maximal size of possible extension queue 3457. Compared 654246 event pairs, 28664 based on Foata normal form. 405/110767 useless extension candidates. Maximal degree in co-relation 225767. Up to 106205 conditions per place. [2024-06-14 14:19:01,008 INFO L140 encePairwiseOnDemand]: 55/65 looper letters, 66 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-06-14 14:19:01,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 78 transitions, 322 flow [2024-06-14 14:19:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:19:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:19:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-06-14 14:19:01,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2024-06-14 14:19:01,021 INFO L175 Difference]: Start difference. First operand has 69 places, 53 transitions, 121 flow. Second operand 3 states and 115 transitions. [2024-06-14 14:19:01,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 78 transitions, 322 flow [2024-06-14 14:19:01,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 78 transitions, 314 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 14:19:01,102 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 153 flow [2024-06-14 14:19:01,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-06-14 14:19:01,106 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -3 predicate places. [2024-06-14 14:19:01,107 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 153 flow [2024-06-14 14:19:01,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-06-14 14:19:01,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:01,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:01,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:19:01,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-14 14:19:01,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash -893476221, now seen corresponding path program 1 times [2024-06-14 14:19:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:01,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900331423] [2024-06-14 14:19:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:01,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:01,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900331423] [2024-06-14 14:19:01,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900331423] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:01,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:01,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:19:01,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664376412] [2024-06-14 14:19:01,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:01,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:19:01,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:19:01,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:19:01,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 65 [2024-06-14 14:19:01,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-06-14 14:19:01,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:01,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 65 [2024-06-14 14:19:01,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:06,770 INFO L124 PetriNetUnfolderBase]: 60517/82856 cut-off events. [2024-06-14 14:19:06,770 INFO L125 PetriNetUnfolderBase]: For 7890/8247 co-relation queries the response was YES. [2024-06-14 14:19:06,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170122 conditions, 82856 events. 60517/82856 cut-off events. For 7890/8247 co-relation queries the response was YES. Maximal size of possible extension queue 2791. Compared 567750 event pairs, 25999 based on Foata normal form. 3844/84110 useless extension candidates. Maximal degree in co-relation 170107. Up to 46714 conditions per place. [2024-06-14 14:19:07,295 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 69 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-06-14 14:19:07,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 361 flow [2024-06-14 14:19:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:19:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:19:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-14 14:19:07,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6307692307692307 [2024-06-14 14:19:07,301 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 153 flow. Second operand 3 states and 123 transitions. [2024-06-14 14:19:07,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 361 flow [2024-06-14 14:19:07,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 85 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:19:07,308 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 162 flow [2024-06-14 14:19:07,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-06-14 14:19:07,311 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2024-06-14 14:19:07,312 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 162 flow [2024-06-14 14:19:07,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-06-14 14:19:07,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:07,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:07,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:19:07,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-14 14:19:07,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash 520075221, now seen corresponding path program 1 times [2024-06-14 14:19:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:07,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455706526] [2024-06-14 14:19:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:07,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455706526] [2024-06-14 14:19:07,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455706526] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:07,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:07,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:19:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719781567] [2024-06-14 14:19:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:19:07,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:19:07,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:19:07,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 65 [2024-06-14 14:19:07,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-06-14 14:19:07,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:07,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 65 [2024-06-14 14:19:07,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:16,535 INFO L124 PetriNetUnfolderBase]: 106070/148866 cut-off events. [2024-06-14 14:19:16,536 INFO L125 PetriNetUnfolderBase]: For 4217/4217 co-relation queries the response was YES. [2024-06-14 14:19:16,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305764 conditions, 148866 events. 106070/148866 cut-off events. For 4217/4217 co-relation queries the response was YES. Maximal size of possible extension queue 5703. Compared 1120965 event pairs, 29912 based on Foata normal form. 1608/145288 useless extension candidates. Maximal degree in co-relation 305747. Up to 47447 conditions per place. [2024-06-14 14:19:17,769 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 105 selfloop transitions, 21 changer transitions 0/145 dead transitions. [2024-06-14 14:19:17,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 145 transitions, 612 flow [2024-06-14 14:19:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:19:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:19:17,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 237 transitions. [2024-06-14 14:19:17,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292307692307692 [2024-06-14 14:19:17,772 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 162 flow. Second operand 5 states and 237 transitions. [2024-06-14 14:19:17,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 145 transitions, 612 flow [2024-06-14 14:19:17,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 145 transitions, 608 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:19:17,831 INFO L231 Difference]: Finished difference. Result has 72 places, 76 transitions, 287 flow [2024-06-14 14:19:17,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=287, PETRI_PLACES=72, PETRI_TRANSITIONS=76} [2024-06-14 14:19:17,832 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2024-06-14 14:19:17,832 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 76 transitions, 287 flow [2024-06-14 14:19:17,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-06-14 14:19:17,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:17,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:17,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:19:17,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-14 14:19:17,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash 131329105, now seen corresponding path program 2 times [2024-06-14 14:19:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:17,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071972371] [2024-06-14 14:19:17,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:17,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071972371] [2024-06-14 14:19:17,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071972371] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:17,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:17,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:19:17,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188174205] [2024-06-14 14:19:17,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:17,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:19:17,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:17,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:19:17,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:19:17,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 65 [2024-06-14 14:19:17,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 76 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-06-14 14:19:17,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:17,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 65 [2024-06-14 14:19:17,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:19:27,928 INFO L124 PetriNetUnfolderBase]: 109791/154983 cut-off events. [2024-06-14 14:19:27,928 INFO L125 PetriNetUnfolderBase]: For 71814/74193 co-relation queries the response was YES. [2024-06-14 14:19:28,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401159 conditions, 154983 events. 109791/154983 cut-off events. For 71814/74193 co-relation queries the response was YES. Maximal size of possible extension queue 6063. Compared 1188777 event pairs, 31147 based on Foata normal form. 3043/152642 useless extension candidates. Maximal degree in co-relation 401140. Up to 47479 conditions per place. [2024-06-14 14:19:29,374 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 105 selfloop transitions, 28 changer transitions 0/152 dead transitions. [2024-06-14 14:19:29,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 152 transitions, 772 flow [2024-06-14 14:19:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:19:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:19:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 237 transitions. [2024-06-14 14:19:29,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292307692307692 [2024-06-14 14:19:29,377 INFO L175 Difference]: Start difference. First operand has 72 places, 76 transitions, 287 flow. Second operand 5 states and 237 transitions. [2024-06-14 14:19:29,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 152 transitions, 772 flow [2024-06-14 14:19:29,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 152 transitions, 772 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-14 14:19:29,394 INFO L231 Difference]: Finished difference. Result has 78 places, 84 transitions, 412 flow [2024-06-14 14:19:29,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=412, PETRI_PLACES=78, PETRI_TRANSITIONS=84} [2024-06-14 14:19:29,395 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2024-06-14 14:19:29,395 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 84 transitions, 412 flow [2024-06-14 14:19:29,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-06-14 14:19:29,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:19:29,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:19:29,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:19:29,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-14 14:19:29,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:19:29,396 INFO L85 PathProgramCache]: Analyzing trace with hash -115267183, now seen corresponding path program 1 times [2024-06-14 14:19:29,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:19:29,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130403655] [2024-06-14 14:19:29,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:19:29,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:19:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:19:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:19:29,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:19:29,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130403655] [2024-06-14 14:19:29,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130403655] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:19:29,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:19:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:19:29,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947760705] [2024-06-14 14:19:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:19:29,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:19:29,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:19:29,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:19:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:19:29,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2024-06-14 14:19:29,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 84 transitions, 412 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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) [2024-06-14 14:19:29,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:19:29,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2024-06-14 14:19:29,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand