./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 bcb38a6f 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-bcb38a6-m [2024-06-04 16:25:54,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:25:54,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:25:54,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:25:54,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:25:54,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:25:54,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:25:54,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:25:54,628 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:25:54,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:25:54,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:25:54,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:25:54,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:25:54,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:25:54,635 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:25:54,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:25:54,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:25:54,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:25:54,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:25:54,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:25:54,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:25:54,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:25:54,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:25:54,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:25:54,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:25:54,639 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:25:54,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:25:54,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:25:54,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:25:54,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:25:54,642 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:25:54,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:25:54,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:54,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:25:54,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:25:54,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:25:54,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:25:54,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:25:54,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:25:54,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:25:54,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:25:54,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:25:54,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:25:54,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:25:54,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:25:54,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:25:54,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:25:54,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:25:54,964 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:25:54,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-04 16:25:56,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:25:56,429 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:25:56,430 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-06-04 16:25:56,437 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73940935/a33c14053d3c44b39999c915c7128e2f/FLAG63b777dff [2024-06-04 16:25:56,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73940935/a33c14053d3c44b39999c915c7128e2f [2024-06-04 16:25:56,454 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:25:56,454 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:25:56,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-5.wvr.yml/witness.yml [2024-06-04 16:25:56,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:25:56,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:25:56,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:56,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:25:56,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:25:56,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:56" (1/2) ... [2024-06-04 16:25:56,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8b817f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:56, skipping insertion in model container [2024-06-04 16:25:56,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:25:56" (1/2) ... [2024-06-04 16:25:56,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54151594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:25:56, skipping insertion in model container [2024-06-04 16:25:56,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:56" (2/2) ... [2024-06-04 16:25:56,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8b817f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56, skipping insertion in model container [2024-06-04 16:25:56,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:56" (2/2) ... [2024-06-04 16:25:56,563 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:25:56,585 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:25:56,589 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) [2024-06-04 16:25:56,589 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) [2024-06-04 16:25:56,589 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) [2024-06-04 16:25:56,589 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) [2024-06-04 16:25:56,589 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) [2024-06-04 16:25:56,589 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:25:56,590 INFO L106 edCorrectnessWitness]: ghost_update [L156-L156] multithreaded = 1; [2024-06-04 16:25:56,614 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:25:56,766 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:56,775 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 [2024-06-04 16:25:56,881 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:25:56,899 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:25:56,899 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56 WrapperNode [2024-06-04 16:25:56,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:25:56,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:56,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:25:56,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:25:56,909 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 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,917 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 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,961 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 232 [2024-06-04 16:25:56,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:25:56,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:25:56,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:25:56,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:25:56,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,995 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]. [2024-06-04 16:25:56,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:56,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:25:57,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:25:57,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:25:57,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:25:57,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (1/1) ... [2024-06-04 16:25:57,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:25:57,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:25:57,054 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) [2024-06-04 16:25:57,098 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 [2024-06-04 16:25:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:25:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 16:25:57,136 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 16:25:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 16:25:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 16:25:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 16:25:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 16:25:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-04 16:25:57,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-04 16:25:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:25:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-04 16:25:57,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-04 16:25:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 16:25:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 16:25:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:25:57,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:25:57,143 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:25:57,306 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:25:57,309 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:25:57,723 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:25:57,726 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:25:57,878 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:25:57,878 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-04 16:25:57,878 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:57 BoogieIcfgContainer [2024-06-04 16:25:57,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:25:57,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:25:57,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:25:57,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:25:57,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:25:56" (1/4) ... [2024-06-04 16:25:57,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e93a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:25:57, skipping insertion in model container [2024-06-04 16:25:57,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:25:56" (2/4) ... [2024-06-04 16:25:57,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e93a23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:25:57, skipping insertion in model container [2024-06-04 16:25:57,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:25:56" (3/4) ... [2024-06-04 16:25:57,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e93a23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:25:57, skipping insertion in model container [2024-06-04 16:25:57,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:25:57" (4/4) ... [2024-06-04 16:25:57,886 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-06-04 16:25:57,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:25:57,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-04 16:25:57,903 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:25:57,960 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-04 16:25:57,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 65 transitions, 165 flow [2024-06-04 16:25:58,060 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2024-06-04 16:25:58,060 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-04 16:25:58,062 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. [2024-06-04 16:25:58,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 65 transitions, 165 flow [2024-06-04 16:25:58,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 53 transitions, 121 flow [2024-06-04 16:25:58,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:25:58,079 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;@3b2d907d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:25:58,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-06-04 16:25:58,084 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:25:58,084 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-04 16:25:58,084 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:25:58,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:25:58,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-04 16:25:58,086 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)] === [2024-06-04 16:25:58,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:25:58,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1424460519, now seen corresponding path program 1 times [2024-06-04 16:25:58,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:25:58,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285314697] [2024-06-04 16:25:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:25:58,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:25:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:25:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:25:58,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:25:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285314697] [2024-06-04 16:25:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285314697] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:25:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:25:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:25:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048921343] [2024-06-04 16:25:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:25:58,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:25:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:25:58,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:25:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:25:58,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 65 [2024-06-04 16:25:58,596 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) [2024-06-04 16:25:58,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:25:58,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 65 [2024-06-04 16:25:58,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:07,360 INFO L124 PetriNetUnfolderBase]: 87503/111664 cut-off events. [2024-06-04 16:26:07,360 INFO L125 PetriNetUnfolderBase]: For 1165/1165 co-relation queries the response was YES. [2024-06-04 16:26:07,562 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. [2024-06-04 16:26:08,052 INFO L140 encePairwiseOnDemand]: 55/65 looper letters, 66 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-06-04 16:26:08,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 78 transitions, 322 flow [2024-06-04 16:26:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:26:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:26:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-06-04 16:26:08,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2024-06-04 16:26:08,066 INFO L175 Difference]: Start difference. First operand has 69 places, 53 transitions, 121 flow. Second operand 3 states and 115 transitions. [2024-06-04 16:26:08,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 78 transitions, 322 flow [2024-06-04 16:26:08,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 78 transitions, 314 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-04 16:26:08,117 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 153 flow [2024-06-04 16:26:08,119 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} [2024-06-04 16:26:08,123 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -3 predicate places. [2024-06-04 16:26:08,123 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 153 flow [2024-06-04 16:26:08,123 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) [2024-06-04 16:26:08,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:08,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:08,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:26:08,124 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)] === [2024-06-04 16:26:08,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash -893476221, now seen corresponding path program 1 times [2024-06-04 16:26:08,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:08,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311431333] [2024-06-04 16:26:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:08,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:08,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311431333] [2024-06-04 16:26:08,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311431333] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:08,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:08,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-04 16:26:08,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596530112] [2024-06-04 16:26:08,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:08,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:26:08,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:08,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:26:08,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:26:08,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 65 [2024-06-04 16:26:08,503 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) [2024-06-04 16:26:08,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:08,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 65 [2024-06-04 16:26:08,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:13,635 INFO L124 PetriNetUnfolderBase]: 60517/82856 cut-off events. [2024-06-04 16:26:13,635 INFO L125 PetriNetUnfolderBase]: For 7890/8247 co-relation queries the response was YES. [2024-06-04 16:26:13,830 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. [2024-06-04 16:26:14,368 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 69 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-06-04 16:26:14,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 361 flow [2024-06-04 16:26:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:26:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:26:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-06-04 16:26:14,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6307692307692307 [2024-06-04 16:26:14,375 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 153 flow. Second operand 3 states and 123 transitions. [2024-06-04 16:26:14,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 361 flow [2024-06-04 16:26:14,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 85 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-04 16:26:14,380 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 162 flow [2024-06-04 16:26:14,383 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} [2024-06-04 16:26:14,384 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2024-06-04 16:26:14,385 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 162 flow [2024-06-04 16:26:14,385 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) [2024-06-04 16:26:14,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:14,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:14,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-04 16:26:14,394 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)] === [2024-06-04 16:26:14,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:14,398 INFO L85 PathProgramCache]: Analyzing trace with hash 520075221, now seen corresponding path program 1 times [2024-06-04 16:26:14,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:14,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582995524] [2024-06-04 16:26:14,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:14,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:14,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:14,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582995524] [2024-06-04 16:26:14,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582995524] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:14,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:14,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:26:14,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211046201] [2024-06-04 16:26:14,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:14,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:14,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:14,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 65 [2024-06-04 16:26:14,539 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) [2024-06-04 16:26:14,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:14,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 65 [2024-06-04 16:26:14,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:23,551 INFO L124 PetriNetUnfolderBase]: 106070/148866 cut-off events. [2024-06-04 16:26:23,551 INFO L125 PetriNetUnfolderBase]: For 4217/4217 co-relation queries the response was YES. [2024-06-04 16:26:24,317 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. [2024-06-04 16:26:24,876 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 105 selfloop transitions, 21 changer transitions 0/145 dead transitions. [2024-06-04 16:26:24,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 145 transitions, 612 flow [2024-06-04 16:26:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 237 transitions. [2024-06-04 16:26:24,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292307692307692 [2024-06-04 16:26:24,879 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 162 flow. Second operand 5 states and 237 transitions. [2024-06-04 16:26:24,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 145 transitions, 612 flow [2024-06-04 16:26:24,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 145 transitions, 608 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-04 16:26:24,939 INFO L231 Difference]: Finished difference. Result has 72 places, 76 transitions, 287 flow [2024-06-04 16:26:24,939 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} [2024-06-04 16:26:24,940 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2024-06-04 16:26:24,940 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 76 transitions, 287 flow [2024-06-04 16:26:24,940 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) [2024-06-04 16:26:24,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:24,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:24,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-04 16:26:24,941 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)] === [2024-06-04 16:26:24,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:24,941 INFO L85 PathProgramCache]: Analyzing trace with hash 131329105, now seen corresponding path program 2 times [2024-06-04 16:26:24,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:24,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651845374] [2024-06-04 16:26:24,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:25,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651845374] [2024-06-04 16:26:25,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651845374] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:25,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-04 16:26:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271459953] [2024-06-04 16:26:25,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:25,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:25,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:25,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:25,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:25,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 65 [2024-06-04 16:26:25,092 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) [2024-06-04 16:26:25,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:25,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 65 [2024-06-04 16:26:25,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:26:35,214 INFO L124 PetriNetUnfolderBase]: 109791/154983 cut-off events. [2024-06-04 16:26:35,215 INFO L125 PetriNetUnfolderBase]: For 71814/74193 co-relation queries the response was YES. [2024-06-04 16:26:35,717 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. [2024-06-04 16:26:36,656 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 105 selfloop transitions, 28 changer transitions 0/152 dead transitions. [2024-06-04 16:26:36,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 152 transitions, 772 flow [2024-06-04 16:26:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-04 16:26:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-04 16:26:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 237 transitions. [2024-06-04 16:26:36,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292307692307692 [2024-06-04 16:26:36,658 INFO L175 Difference]: Start difference. First operand has 72 places, 76 transitions, 287 flow. Second operand 5 states and 237 transitions. [2024-06-04 16:26:36,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 152 transitions, 772 flow [2024-06-04 16:26:36,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 152 transitions, 772 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-04 16:26:36,673 INFO L231 Difference]: Finished difference. Result has 78 places, 84 transitions, 412 flow [2024-06-04 16:26:36,674 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} [2024-06-04 16:26:36,674 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, 9 predicate places. [2024-06-04 16:26:36,674 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 84 transitions, 412 flow [2024-06-04 16:26:36,675 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) [2024-06-04 16:26:36,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:26:36,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:26:36,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-04 16:26:36,675 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)] === [2024-06-04 16:26:36,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:26:36,676 INFO L85 PathProgramCache]: Analyzing trace with hash -115267183, now seen corresponding path program 1 times [2024-06-04 16:26:36,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:26:36,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10472920] [2024-06-04 16:26:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:26:36,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:26:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:26:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:26:36,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:26:36,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10472920] [2024-06-04 16:26:36,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10472920] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:26:36,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:26:36,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-04 16:26:36,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729253849] [2024-06-04 16:26:36,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:26:36,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-04 16:26:36,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:26:36,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-04 16:26:36,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-04 16:26:36,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2024-06-04 16:26:36,805 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) [2024-06-04 16:26:36,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:26:36,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2024-06-04 16:26:36,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand