./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.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-3.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-3.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.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 14:18:42,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:18:42,617 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:18:42,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:18:42,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:18:42,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:18:42,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:18:42,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:18:42,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:18:42,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:18:42,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:18:42,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:18:42,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:18:42,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:18:42,642 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:18:42,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:18:42,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:18:42,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:18:42,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:18:42,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:18:42,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:18:42,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:18:42,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:18:42,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:18:42,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:18:42,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:18:42,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:18:42,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:18:42,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:18:42,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:18:42,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:18:42,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:18:42,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:42,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:18:42,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:18:42,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:18:42,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:18:42,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:18:42,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:18:42,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:18:42,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:18:42,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:18:42,827 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:18:42,827 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:18:42,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-14 14:18:43,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:18:43,955 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:18:43,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-06-14 14:18:43,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b02ca923/e738f4c69d834243a527ef44896287ea/FLAG615f5ee70 [2024-06-14 14:18:43,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b02ca923/e738f4c69d834243a527ef44896287ea [2024-06-14 14:18:43,974 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:18:43,974 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:18:43,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-ticket-3.wvr.yml/witness.yml [2024-06-14 14:18:44,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:18:44,046 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:18:44,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:44,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:18:44,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:18:44,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:43" (1/2) ... [2024-06-14 14:18:44,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cefc296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:18:43" (1/2) ... [2024-06-14 14:18:44,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1567a2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (2/2) ... [2024-06-14 14:18:44,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cefc296 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (2/2) ... [2024-06-14 14:18:44,056 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:18:44,066 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:18:44,070 INFO L97 edCorrectnessWitness]: Location invariant before [L117-L117] ! 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 14:18:44,070 INFO L97 edCorrectnessWitness]: Location invariant before [L119-L119] ! 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 14:18:44,070 INFO L97 edCorrectnessWitness]: Location invariant before [L118-L118] ! 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 14:18:44,070 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:18:44,071 INFO L106 edCorrectnessWitness]: ghost_update [L116-L116] multithreaded = 1; [2024-06-14 14:18:44,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:18:44,219 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:44,226 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:18:44,277 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:18:44,295 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:18:44,295 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:18:44 WrapperNode [2024-06-14 14:18:44,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:18:44,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:44,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:18:44,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:18:44,302 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,314 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,335 INFO L138 Inliner]: procedures = 21, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 158 [2024-06-14 14:18:44,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:18:44,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:18:44,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:18:44,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:18:44,349 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,350 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,360 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,381 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 14:18:44,382 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,382 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,393 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,396 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,399 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,401 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:18:44,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:18:44,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:18:44,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:18:44,406 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 02:18:44" (1/1) ... [2024-06-14 14:18:44,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:18:44,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:18:44,429 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 14:18:44,448 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 14:18:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:18:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:18:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:18:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:18:44,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:18:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:18:44,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:18:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:18:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:18:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:18:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:18:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:18:44,464 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 14:18:44,558 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:18:44,560 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:18:44,767 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:18:44,767 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:18:44,881 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:18:44,882 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-14 14:18:44,882 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:44 BoogieIcfgContainer [2024-06-14 14:18:44,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:18:44,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:18:44,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:18:44,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:18:44,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:18:43" (1/4) ... [2024-06-14 14:18:44,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e83ba8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:18:44" (2/4) ... [2024-06-14 14:18:44,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e83ba8f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,887 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 02:18:44" (3/4) ... [2024-06-14 14:18:44,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e83ba8f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:18:44, skipping insertion in model container [2024-06-14 14:18:44,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:18:44" (4/4) ... [2024-06-14 14:18:44,889 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-06-14 14:18:44,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:18:44,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:18:44,901 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:18:44,934 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 14:18:44,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 103 flow [2024-06-14 14:18:44,979 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-06-14 14:18:44,980 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 14:18:44,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-14 14:18:44,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 103 flow [2024-06-14 14:18:45,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-06-14 14:18:45,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:18:45,059 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;@6b43ca4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:18:45,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:18:45,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:18:45,067 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-14 14:18:45,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:18:45,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:45,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-14 14:18:45,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:45,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2147214457, now seen corresponding path program 1 times [2024-06-14 14:18:45,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:45,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375891721] [2024-06-14 14:18:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:45,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:45,428 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 14:18:45,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:45,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375891721] [2024-06-14 14:18:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375891721] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:45,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:45,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:18:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753510736] [2024-06-14 14:18:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:45,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:18:45,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:18:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:18:45,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-14 14:18:45,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 14:18:45,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:45,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-14 14:18:45,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:45,777 INFO L124 PetriNetUnfolderBase]: 1208/1845 cut-off events. [2024-06-14 14:18:45,777 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-06-14 14:18:45,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3748 conditions, 1845 events. 1208/1845 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8956 event pairs, 431 based on Foata normal form. 45/1863 useless extension candidates. Maximal degree in co-relation 3733. Up to 1448 conditions per place. [2024-06-14 14:18:45,789 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 38 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-06-14 14:18:45,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 46 transitions, 186 flow [2024-06-14 14:18:45,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:18:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:18:45,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-06-14 14:18:45,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5772357723577236 [2024-06-14 14:18:45,800 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 3 states and 71 transitions. [2024-06-14 14:18:45,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 46 transitions, 186 flow [2024-06-14 14:18:45,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 182 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-14 14:18:45,804 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 91 flow [2024-06-14 14:18:45,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-06-14 14:18:45,808 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2024-06-14 14:18:45,809 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 91 flow [2024-06-14 14:18:45,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 14:18:45,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:45,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:45,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:18:45,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:45,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1541006464, now seen corresponding path program 1 times [2024-06-14 14:18:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:45,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742757984] [2024-06-14 14:18:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:45,916 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 14:18:45,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:45,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742757984] [2024-06-14 14:18:45,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742757984] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:45,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:45,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 14:18:45,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46626856] [2024-06-14 14:18:45,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:45,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:18:45,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:45,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:18:45,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:18:45,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-06-14 14:18:45,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 14:18:45,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:45,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-06-14 14:18:45,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:46,086 INFO L124 PetriNetUnfolderBase]: 961/1613 cut-off events. [2024-06-14 14:18:46,086 INFO L125 PetriNetUnfolderBase]: For 174/182 co-relation queries the response was YES. [2024-06-14 14:18:46,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1613 events. 961/1613 cut-off events. For 174/182 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8598 event pairs, 415 based on Foata normal form. 89/1671 useless extension candidates. Maximal degree in co-relation 3331. Up to 892 conditions per place. [2024-06-14 14:18:46,096 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 39 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-06-14 14:18:46,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 207 flow [2024-06-14 14:18:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:18:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:18:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-06-14 14:18:46,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5934959349593496 [2024-06-14 14:18:46,099 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 91 flow. Second operand 3 states and 73 transitions. [2024-06-14 14:18:46,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 207 flow [2024-06-14 14:18:46,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:18:46,104 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 98 flow [2024-06-14 14:18:46,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-06-14 14:18:46,105 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-06-14 14:18:46,105 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 98 flow [2024-06-14 14:18:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 14:18:46,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:46,106 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 14:18:46,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 14:18:46,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:46,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:46,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2029084626, now seen corresponding path program 1 times [2024-06-14 14:18:46,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:46,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622468494] [2024-06-14 14:18:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:46,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:46,221 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 14:18:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622468494] [2024-06-14 14:18:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622468494] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:46,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:46,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:46,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816091306] [2024-06-14 14:18:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:46,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:46,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:46,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:46,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:46,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-14 14:18:46,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:18:46,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:46,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-14 14:18:46,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:46,472 INFO L124 PetriNetUnfolderBase]: 1188/2170 cut-off events. [2024-06-14 14:18:46,472 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-06-14 14:18:46,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4509 conditions, 2170 events. 1188/2170 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 13241 event pairs, 392 based on Foata normal form. 38/2178 useless extension candidates. Maximal degree in co-relation 4492. Up to 690 conditions per place. [2024-06-14 14:18:46,481 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 57 selfloop transitions, 13 changer transitions 0/81 dead transitions. [2024-06-14 14:18:46,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 81 transitions, 340 flow [2024-06-14 14:18:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-06-14 14:18:46,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6878048780487804 [2024-06-14 14:18:46,483 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 98 flow. Second operand 5 states and 141 transitions. [2024-06-14 14:18:46,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 81 transitions, 340 flow [2024-06-14 14:18:46,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 81 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:18:46,486 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 173 flow [2024-06-14 14:18:46,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-06-14 14:18:46,487 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-06-14 14:18:46,487 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 173 flow [2024-06-14 14:18:46,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:18:46,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:46,487 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 14:18:46,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 14:18:46,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:46,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:46,488 INFO L85 PathProgramCache]: Analyzing trace with hash -562038122, now seen corresponding path program 2 times [2024-06-14 14:18:46,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:46,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538818757] [2024-06-14 14:18:46,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:46,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:46,541 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 14:18:46,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538818757] [2024-06-14 14:18:46,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538818757] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:46,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:46,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107328476] [2024-06-14 14:18:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:46,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:46,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:46,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-14 14:18:46,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:18:46,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:46,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-14 14:18:46,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:46,797 INFO L124 PetriNetUnfolderBase]: 1145/2149 cut-off events. [2024-06-14 14:18:46,797 INFO L125 PetriNetUnfolderBase]: For 1012/1022 co-relation queries the response was YES. [2024-06-14 14:18:46,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5405 conditions, 2149 events. 1145/2149 cut-off events. For 1012/1022 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13404 event pairs, 394 based on Foata normal form. 47/2167 useless extension candidates. Maximal degree in co-relation 5386. Up to 669 conditions per place. [2024-06-14 14:18:46,807 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 57 selfloop transitions, 16 changer transitions 0/84 dead transitions. [2024-06-14 14:18:46,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 84 transitions, 428 flow [2024-06-14 14:18:46,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-06-14 14:18:46,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6878048780487804 [2024-06-14 14:18:46,811 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 173 flow. Second operand 5 states and 141 transitions. [2024-06-14 14:18:46,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 84 transitions, 428 flow [2024-06-14 14:18:46,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 84 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-14 14:18:46,815 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 242 flow [2024-06-14 14:18:46,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-06-14 14:18:46,817 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2024-06-14 14:18:46,817 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 242 flow [2024-06-14 14:18:46,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 14:18:46,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:46,818 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 14:18:46,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 14:18:46,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:46,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 440188026, now seen corresponding path program 1 times [2024-06-14 14:18:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057867649] [2024-06-14 14:18:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:46,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:46,940 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 14:18:46,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:46,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057867649] [2024-06-14 14:18:46,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057867649] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:46,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:46,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:18:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685355514] [2024-06-14 14:18:46,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:46,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:46,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:46,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:46,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-14 14:18:46,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 14:18:46,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:46,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-14 14:18:46,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:47,197 INFO L124 PetriNetUnfolderBase]: 1984/3301 cut-off events. [2024-06-14 14:18:47,198 INFO L125 PetriNetUnfolderBase]: For 4069/4089 co-relation queries the response was YES. [2024-06-14 14:18:47,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9845 conditions, 3301 events. 1984/3301 cut-off events. For 4069/4089 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 18948 event pairs, 795 based on Foata normal form. 65/3315 useless extension candidates. Maximal degree in co-relation 9822. Up to 2507 conditions per place. [2024-06-14 14:18:47,214 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 75 selfloop transitions, 11 changer transitions 0/93 dead transitions. [2024-06-14 14:18:47,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 93 transitions, 629 flow [2024-06-14 14:18:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-06-14 14:18:47,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170731707317073 [2024-06-14 14:18:47,217 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 242 flow. Second operand 5 states and 106 transitions. [2024-06-14 14:18:47,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 93 transitions, 629 flow [2024-06-14 14:18:47,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-14 14:18:47,225 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 344 flow [2024-06-14 14:18:47,225 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2024-06-14 14:18:47,227 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-06-14 14:18:47,227 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 344 flow [2024-06-14 14:18:47,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 14:18:47,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:47,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:47,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-14 14:18:47,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:47,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1160988561, now seen corresponding path program 1 times [2024-06-14 14:18:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:47,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148097415] [2024-06-14 14:18:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:47,334 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 14:18:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:47,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148097415] [2024-06-14 14:18:47,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148097415] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:47,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:47,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:18:47,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334296128] [2024-06-14 14:18:47,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:47,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:47,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:47,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:47,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:47,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2024-06-14 14:18:47,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:18:47,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:47,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2024-06-14 14:18:47,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:47,581 INFO L124 PetriNetUnfolderBase]: 1757/3022 cut-off events. [2024-06-14 14:18:47,581 INFO L125 PetriNetUnfolderBase]: For 5523/5577 co-relation queries the response was YES. [2024-06-14 14:18:47,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9207 conditions, 3022 events. 1757/3022 cut-off events. For 5523/5577 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 17905 event pairs, 580 based on Foata normal form. 247/3241 useless extension candidates. Maximal degree in co-relation 9181. Up to 1818 conditions per place. [2024-06-14 14:18:47,592 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 53 selfloop transitions, 12 changer transitions 34/104 dead transitions. [2024-06-14 14:18:47,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 104 transitions, 748 flow [2024-06-14 14:18:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:47,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-06-14 14:18:47,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317073170731708 [2024-06-14 14:18:47,593 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 344 flow. Second operand 5 states and 109 transitions. [2024-06-14 14:18:47,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 104 transitions, 748 flow [2024-06-14 14:18:47,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 104 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:18:47,599 INFO L231 Difference]: Finished difference. Result has 63 places, 50 transitions, 332 flow [2024-06-14 14:18:47,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2024-06-14 14:18:47,599 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-06-14 14:18:47,599 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 332 flow [2024-06-14 14:18:47,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:18:47,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:18:47,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:18:47,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-14 14:18:47,600 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 14:18:47,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:18:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1358728026, now seen corresponding path program 1 times [2024-06-14 14:18:47,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:18:47,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911188125] [2024-06-14 14:18:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:18:47,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:18:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:18:47,642 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 14:18:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:18:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911188125] [2024-06-14 14:18:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911188125] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:18:47,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:18:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 14:18:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736071978] [2024-06-14 14:18:47,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:18:47,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:18:47,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:18:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:18:47,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:18:47,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-06-14 14:18:47,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 332 flow. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 14:18:47,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:18:47,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-06-14 14:18:47,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:18:47,741 INFO L124 PetriNetUnfolderBase]: 300/577 cut-off events. [2024-06-14 14:18:47,741 INFO L125 PetriNetUnfolderBase]: For 858/924 co-relation queries the response was YES. [2024-06-14 14:18:47,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 577 events. 300/577 cut-off events. For 858/924 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2408 event pairs, 88 based on Foata normal form. 36/611 useless extension candidates. Maximal degree in co-relation 1700. Up to 186 conditions per place. [2024-06-14 14:18:47,743 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-06-14 14:18:47,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 376 flow [2024-06-14 14:18:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:18:47,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:18:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-14 14:18:47,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5902439024390244 [2024-06-14 14:18:47,744 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 332 flow. Second operand 5 states and 121 transitions. [2024-06-14 14:18:47,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 376 flow [2024-06-14 14:18:47,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 325 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-06-14 14:18:47,746 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-06-14 14:18:47,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-06-14 14:18:47,747 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-14 14:18:47,747 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-06-14 14:18:47,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 14:18:47,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 14:18:47,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-14 14:18:47,750 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-06-14 14:18:47,752 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:18:47,752 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:18:47,754 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 14:18:47,755 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 14:18:47,755 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:18:47 BasicIcfg [2024-06-14 14:18:47,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:18:47,756 INFO L158 Benchmark]: Toolchain (without parser) took 3709.45ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 117.9MB in the beginning and 79.2MB in the end (delta: 38.6MB). Peak memory consumption was 140.1MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,756 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:18:47,756 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:18:47,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.57ms. Allocated memory is still 155.2MB. Free memory was 117.9MB in the beginning and 102.9MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.67ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 99.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,756 INFO L158 Benchmark]: Boogie Preprocessor took 63.94ms. Allocated memory is still 155.2MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,757 INFO L158 Benchmark]: RCFGBuilder took 476.85ms. Allocated memory is still 155.2MB. Free memory was 97.8MB in the beginning and 55.0MB in the end (delta: 42.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,757 INFO L158 Benchmark]: TraceAbstraction took 2871.45ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 53.8MB in the beginning and 79.2MB in the end (delta: -25.4MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2024-06-14 14:18:47,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.57ms. Allocated memory is still 155.2MB. Free memory was 117.9MB in the beginning and 102.9MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.67ms. Allocated memory is still 155.2MB. Free memory was 102.9MB in the beginning and 99.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.94ms. Allocated memory is still 155.2MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.85ms. Allocated memory is still 155.2MB. Free memory was 97.8MB in the beginning and 55.0MB in the end (delta: 42.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2871.45ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 53.8MB in the beginning and 79.2MB in the end (delta: -25.4MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 117]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 118]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 119]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 67 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 728 IncrementalHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 11 mSDtfsCounter, 728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:18:47,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE