./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.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/protection/popl20-three-array-max.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/popl20-three-array-max.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/popl20-three-array-max.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 11:44:17,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:44:17,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 11:44:17,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:44:17,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:44:17,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:44:17,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:44:17,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:44:17,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:44:17,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:44:17,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:44:17,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:44:17,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:44:17,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:44:17,857 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:44:17,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:44:17,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:44:17,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:44:17,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 11:44:17,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:44:17,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:44:17,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:44:17,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:44:17,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:44:17,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:44:17,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:44:17,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:44:17,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:44:17,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:44:17,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:44:17,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:44:17,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:44:17,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:44:17,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:44:17,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:44:17,863 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:44:17,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:44:17,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:44:17,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:44:18,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:44:18,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:44:18,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:44:18,127 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:44:18,127 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:44:18,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2024-06-14 11:44:19,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:44:19,338 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 11:44:19,339 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2024-06-14 11:44:19,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b02a1c2b/3bc0b8ca6e6f442381292def60770a00/FLAGeb0756009 [2024-06-14 11:44:19,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b02a1c2b/3bc0b8ca6e6f442381292def60770a00 [2024-06-14 11:44:19,362 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:44:19,363 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:44:19,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/popl20-three-array-max.wvr.yml/witness.yml [2024-06-14 11:44:19,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:44:19,436 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:44:19,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:44:19,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:44:19,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:44:19,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:44:19" (1/2) ... [2024-06-14 11:44:19,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f524bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:19, skipping insertion in model container [2024-06-14 11:44:19,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:44:19" (1/2) ... [2024-06-14 11:44:19,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60fccf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:19, skipping insertion in model container [2024-06-14 11:44:19,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:19" (2/2) ... [2024-06-14 11:44:19,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f524bc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:44:19, skipping insertion in model container [2024-06-14 11:44:19,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:19" (2/2) ... [2024-06-14 11:44:19,447 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 11:44:19,464 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 11:44:19,464 INFO L97 edCorrectnessWitness]: Location invariant before [L109-L109] ! multithreaded || 1 <= p [2024-06-14 11:44:19,465 INFO L97 edCorrectnessWitness]: Location invariant before [L107-L107] ! multithreaded || 1 <= p [2024-06-14 11:44:19,465 INFO L97 edCorrectnessWitness]: Location invariant before [L108-L108] ! multithreaded || 1 <= p [2024-06-14 11:44:19,465 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 11:44:19,465 INFO L106 edCorrectnessWitness]: ghost_update [L106-L106] multithreaded = 1; [2024-06-14 11:44:19,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:44:19,672 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:44:19,681 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 11:44:19,737 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:44:19,751 INFO L206 MainTranslator]: Completed translation [2024-06-14 11:44:19,751 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:44:19 WrapperNode [2024-06-14 11:44:19,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 11:44:19,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 11:44:19,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 11:44:19,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 11:44:19,756 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,763 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,785 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 230 [2024-06-14 11:44:19,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 11:44:19,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 11:44:19,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 11:44:19,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 11:44:19,794 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,794 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,797 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,810 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-06-14 11:44:19,811 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,811 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,830 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,835 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,836 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,837 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 11:44:19,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 11:44:19,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 11:44:19,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 11:44:19,841 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 11:44:19" (1/1) ... [2024-06-14 11:44:19,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:44:19,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:44:19,878 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 11:44:19,885 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 11:44:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 11:44:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 11:44:19,903 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 11:44:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 11:44:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 11:44:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 11:44:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 11:44:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 11:44:19,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 11:44:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 11:44:19,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 11:44:19,906 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 11:44:19,991 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 11:44:19,993 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 11:44:20,306 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 11:44:20,307 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 11:44:20,556 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 11:44:20,556 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-06-14 11:44:20,557 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:44:20 BoogieIcfgContainer [2024-06-14 11:44:20,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 11:44:20,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 11:44:20,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 11:44:20,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 11:44:20,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:44:19" (1/4) ... [2024-06-14 11:44:20,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99c8156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:44:20, skipping insertion in model container [2024-06-14 11:44:20,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:19" (2/4) ... [2024-06-14 11:44:20,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99c8156 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:44:20, skipping insertion in model container [2024-06-14 11:44:20,563 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 11:44:19" (3/4) ... [2024-06-14 11:44:20,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99c8156 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:44:20, skipping insertion in model container [2024-06-14 11:44:20,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:44:20" (4/4) ... [2024-06-14 11:44:20,567 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2024-06-14 11:44:20,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 11:44:20,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 11:44:20,580 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 11:44:20,620 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 11:44:20,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 45 transitions, 111 flow [2024-06-14 11:44:20,697 INFO L124 PetriNetUnfolderBase]: 7/42 cut-off events. [2024-06-14 11:44:20,697 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 11:44:20,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 42 events. 7/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-06-14 11:44:20,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 45 transitions, 111 flow [2024-06-14 11:44:20,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 40 transitions, 95 flow [2024-06-14 11:44:20,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 11:44:20,723 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;@6333c88b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 11:44:20,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 11:44:20,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 11:44:20,734 INFO L124 PetriNetUnfolderBase]: 4/13 cut-off events. [2024-06-14 11:44:20,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:44:20,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:20,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:20,738 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 11:44:20,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1249812076, now seen corresponding path program 1 times [2024-06-14 11:44:20,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:20,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071519610] [2024-06-14 11:44:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:20,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:21,008 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 11:44:21,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071519610] [2024-06-14 11:44:21,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071519610] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:21,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:21,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 11:44:21,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532146713] [2024-06-14 11:44:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:21,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:44:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:21,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:44:21,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:44:21,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-06-14 11:44:21,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 40 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 11:44:21,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:21,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-06-14 11:44:21,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:21,306 INFO L124 PetriNetUnfolderBase]: 762/1217 cut-off events. [2024-06-14 11:44:21,306 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-06-14 11:44:21,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2334 conditions, 1217 events. 762/1217 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5214 event pairs, 237 based on Foata normal form. 36/1110 useless extension candidates. Maximal degree in co-relation 2058. Up to 671 conditions per place. [2024-06-14 11:44:21,316 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 43 selfloop transitions, 2 changer transitions 2/54 dead transitions. [2024-06-14 11:44:21,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 226 flow [2024-06-14 11:44:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:44:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:44:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-06-14 11:44:21,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-06-14 11:44:21,328 INFO L175 Difference]: Start difference. First operand has 43 places, 40 transitions, 95 flow. Second operand 3 states and 80 transitions. [2024-06-14 11:44:21,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 226 flow [2024-06-14 11:44:21,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 212 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 11:44:21,336 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 95 flow [2024-06-14 11:44:21,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-06-14 11:44:21,341 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-06-14 11:44:21,341 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 95 flow [2024-06-14 11:44:21,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 11:44:21,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:21,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:21,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 11:44:21,342 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 11:44:21,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:21,343 INFO L85 PathProgramCache]: Analyzing trace with hash -613663849, now seen corresponding path program 1 times [2024-06-14 11:44:21,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:21,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978192942] [2024-06-14 11:44:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:21,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:21,438 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 11:44:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978192942] [2024-06-14 11:44:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978192942] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:21,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:21,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:44:21,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684948154] [2024-06-14 11:44:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:21,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 11:44:21,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 11:44:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 11:44:21,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-06-14 11:44:21,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 11:44:21,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:21,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-06-14 11:44:21,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:21,669 INFO L124 PetriNetUnfolderBase]: 1047/1692 cut-off events. [2024-06-14 11:44:21,670 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2024-06-14 11:44:21,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3439 conditions, 1692 events. 1047/1692 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7928 event pairs, 385 based on Foata normal form. 54/1567 useless extension candidates. Maximal degree in co-relation 872. Up to 887 conditions per place. [2024-06-14 11:44:21,677 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 67 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2024-06-14 11:44:21,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 79 transitions, 330 flow [2024-06-14 11:44:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 11:44:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 11:44:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-06-14 11:44:21,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-06-14 11:44:21,680 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 95 flow. Second operand 5 states and 126 transitions. [2024-06-14 11:44:21,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 79 transitions, 330 flow [2024-06-14 11:44:21,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 79 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:44:21,684 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 132 flow [2024-06-14 11:44:21,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2024-06-14 11:44:21,686 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-06-14 11:44:21,686 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 132 flow [2024-06-14 11:44:21,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 11:44:21,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:21,690 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:21,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 11:44:21,691 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 11:44:21,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:21,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1441057580, now seen corresponding path program 1 times [2024-06-14 11:44:21,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:21,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185540377] [2024-06-14 11:44:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:21,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 11:44:21,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:21,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185540377] [2024-06-14 11:44:21,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185540377] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:21,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:21,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 11:44:21,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939395375] [2024-06-14 11:44:21,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:21,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:44:21,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:21,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:44:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:44:21,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-06-14 11:44:21,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 11:44:21,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:21,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-06-14 11:44:21,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:21,948 INFO L124 PetriNetUnfolderBase]: 936/1586 cut-off events. [2024-06-14 11:44:21,948 INFO L125 PetriNetUnfolderBase]: For 904/919 co-relation queries the response was YES. [2024-06-14 11:44:21,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 1586 events. 936/1586 cut-off events. For 904/919 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7702 event pairs, 649 based on Foata normal form. 0/1385 useless extension candidates. Maximal degree in co-relation 1374. Up to 1258 conditions per place. [2024-06-14 11:44:21,954 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 32 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-06-14 11:44:21,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 202 flow [2024-06-14 11:44:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:44:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:44:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-06-14 11:44:21,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-06-14 11:44:21,956 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 132 flow. Second operand 3 states and 70 transitions. [2024-06-14 11:44:21,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 202 flow [2024-06-14 11:44:21,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 195 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-14 11:44:21,958 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 137 flow [2024-06-14 11:44:21,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2024-06-14 11:44:21,959 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-06-14 11:44:21,959 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 137 flow [2024-06-14 11:44:21,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 11:44:21,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:21,959 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:21,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 11:44:21,960 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 11:44:21,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1756656004, now seen corresponding path program 1 times [2024-06-14 11:44:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:21,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146471430] [2024-06-14 11:44:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-14 11:44:22,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146471430] [2024-06-14 11:44:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146471430] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:22,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:44:22,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302335610] [2024-06-14 11:44:22,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:22,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 11:44:22,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:22,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 11:44:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 11:44:22,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-06-14 11:44:22,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 11:44:22,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:22,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-06-14 11:44:22,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:22,233 INFO L124 PetriNetUnfolderBase]: 936/1588 cut-off events. [2024-06-14 11:44:22,233 INFO L125 PetriNetUnfolderBase]: For 654/669 co-relation queries the response was YES. [2024-06-14 11:44:22,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3556 conditions, 1588 events. 936/1588 cut-off events. For 654/669 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7692 event pairs, 649 based on Foata normal form. 1/1388 useless extension candidates. Maximal degree in co-relation 3541. Up to 1257 conditions per place. [2024-06-14 11:44:22,240 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 30 selfloop transitions, 6 changer transitions 0/45 dead transitions. [2024-06-14 11:44:22,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 213 flow [2024-06-14 11:44:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 11:44:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 11:44:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-06-14 11:44:22,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778 [2024-06-14 11:44:22,242 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 137 flow. Second operand 4 states and 86 transitions. [2024-06-14 11:44:22,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 213 flow [2024-06-14 11:44:22,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 209 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-14 11:44:22,246 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 161 flow [2024-06-14 11:44:22,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2024-06-14 11:44:22,247 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2024-06-14 11:44:22,247 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 161 flow [2024-06-14 11:44:22,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 11:44:22,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:22,248 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:22,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-14 11:44:22,248 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 11:44:22,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:22,249 INFO L85 PathProgramCache]: Analyzing trace with hash 990615843, now seen corresponding path program 1 times [2024-06-14 11:44:22,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:22,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43827505] [2024-06-14 11:44:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:22,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-14 11:44:22,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43827505] [2024-06-14 11:44:22,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43827505] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 11:44:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212354729] [2024-06-14 11:44:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:22,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 11:44:22,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:44:22,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 11:44:22,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 11:44:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:22,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2024-06-14 11:44:22,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:44:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-14 11:44:22,554 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 11:44:22,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-06-14 11:44:22,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212354729] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 11:44:22,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 11:44:22,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-06-14 11:44:22,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090464851] [2024-06-14 11:44:22,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 11:44:22,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-14 11:44:22,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:22,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-14 11:44:22,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-06-14 11:44:22,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2024-06-14 11:44:22,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 161 flow. Second operand has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 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 11:44:22,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:22,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2024-06-14 11:44:22,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:22,992 INFO L124 PetriNetUnfolderBase]: 1488/2445 cut-off events. [2024-06-14 11:44:22,992 INFO L125 PetriNetUnfolderBase]: For 620/659 co-relation queries the response was YES. [2024-06-14 11:44:22,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5363 conditions, 2445 events. 1488/2445 cut-off events. For 620/659 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 11933 event pairs, 976 based on Foata normal form. 44/2202 useless extension candidates. Maximal degree in co-relation 4374. Up to 1643 conditions per place. [2024-06-14 11:44:23,003 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 31 selfloop transitions, 9 changer transitions 45/93 dead transitions. [2024-06-14 11:44:23,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 482 flow [2024-06-14 11:44:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-14 11:44:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-14 11:44:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2024-06-14 11:44:23,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2024-06-14 11:44:23,006 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 161 flow. Second operand 9 states and 190 transitions. [2024-06-14 11:44:23,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 482 flow [2024-06-14 11:44:23,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:44:23,009 INFO L231 Difference]: Finished difference. Result has 61 places, 48 transitions, 218 flow [2024-06-14 11:44:23,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=218, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2024-06-14 11:44:23,011 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-06-14 11:44:23,011 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 218 flow [2024-06-14 11:44:23,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 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 11:44:23,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:23,011 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:23,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 11:44:23,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 11:44:23,223 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 11:44:23,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1528956582, now seen corresponding path program 2 times [2024-06-14 11:44:23,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:23,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868656978] [2024-06-14 11:44:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-06-14 11:44:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868656978] [2024-06-14 11:44:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868656978] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 11:44:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015788519] [2024-06-14 11:44:23,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-06-14 11:44:23,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 11:44:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:44:23,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 11:44:23,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-14 11:44:23,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-06-14 11:44:23,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-06-14 11:44:23,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2024-06-14 11:44:23,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:44:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-06-14 11:44:23,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 11:44:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-06-14 11:44:23,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015788519] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 11:44:23,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 11:44:23,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 16 [2024-06-14 11:44:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922179221] [2024-06-14 11:44:23,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 11:44:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-06-14 11:44:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-06-14 11:44:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-06-14 11:44:23,643 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-06-14 11:44:23,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 218 flow. Second operand has 16 states, 16 states have (on average 12.3125) internal successors, (197), 16 states have internal predecessors, (197), 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 11:44:23,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:23,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-06-14 11:44:23,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:24,139 INFO L124 PetriNetUnfolderBase]: 1805/2761 cut-off events. [2024-06-14 11:44:24,140 INFO L125 PetriNetUnfolderBase]: For 951/951 co-relation queries the response was YES. [2024-06-14 11:44:24,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6759 conditions, 2761 events. 1805/2761 cut-off events. For 951/951 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 13063 event pairs, 323 based on Foata normal form. 116/2582 useless extension candidates. Maximal degree in co-relation 4161. Up to 464 conditions per place. [2024-06-14 11:44:24,149 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 0 selfloop transitions, 0 changer transitions 163/163 dead transitions. [2024-06-14 11:44:24,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 163 transitions, 911 flow [2024-06-14 11:44:24,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-06-14 11:44:24,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-06-14 11:44:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 297 transitions. [2024-06-14 11:44:24,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2024-06-14 11:44:24,151 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 218 flow. Second operand 15 states and 297 transitions. [2024-06-14 11:44:24,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 163 transitions, 911 flow [2024-06-14 11:44:24,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 163 transitions, 841 flow, removed 29 selfloop flow, removed 5 redundant places. [2024-06-14 11:44:24,159 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-06-14 11:44:24,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-06-14 11:44:24,162 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-06-14 11:44:24,162 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-06-14 11:44:24,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.3125) internal successors, (197), 16 states have internal predecessors, (197), 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 11:44:24,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 11:44:24,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 11:44:24,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 11:44:24,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 11:44:24,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 11:44:24,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 11:44:24,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-14 11:44:24,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-06-14 11:44:24,378 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-06-14 11:44:24,380 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 11:44:24,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 11:44:24,383 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 11:44:24,383 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 11:44:24,384 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 11:44:24 BasicIcfg [2024-06-14 11:44:24,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 11:44:24,384 INFO L158 Benchmark]: Toolchain (without parser) took 4952.52ms. Allocated memory was 157.3MB in the beginning and 264.2MB in the end (delta: 107.0MB). Free memory was 127.2MB in the beginning and 89.4MB in the end (delta: 37.7MB). Peak memory consumption was 146.8MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,385 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 157.3MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:44:24,385 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 157.3MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:44:24,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.80ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 111.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.45ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 109.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,386 INFO L158 Benchmark]: Boogie Preprocessor took 54.07ms. Allocated memory is still 157.3MB. Free memory was 109.0MB in the beginning and 105.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,386 INFO L158 Benchmark]: RCFGBuilder took 716.89ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 76.9MB in the end (delta: 28.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,386 INFO L158 Benchmark]: TraceAbstraction took 3824.32ms. Allocated memory was 157.3MB in the beginning and 264.2MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 89.4MB in the end (delta: -13.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2024-06-14 11:44:24,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 157.3MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 157.3MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.80ms. Allocated memory is still 157.3MB. Free memory was 126.8MB in the beginning and 111.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.45ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 109.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.07ms. Allocated memory is still 157.3MB. Free memory was 109.0MB in the beginning and 105.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 716.89ms. Allocated memory is still 157.3MB. Free memory was 105.9MB in the beginning and 76.9MB in the end (delta: 28.9MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3824.32ms. Allocated memory was 157.3MB in the beginning and 264.2MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 89.4MB in the end (delta: -13.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 108]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 109]: 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, 58 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: 3.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 384 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1271 IncrementalHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 9 mSDtfsCounter, 1271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=5, InterpolantAutomatonStates: 39, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 6 NumberOfNonLiveVariables, 493 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 42/53 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 11:44:24,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE