./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:00:54,479 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:00:54,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 23:00:54,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:00:54,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:00:54,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:00:54,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:00:54,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:00:54,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:00:54,693 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:00:54,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:00:54,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:00:54,695 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:00:54,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:00:54,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:00:54,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:00:54,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:00:54,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:00:54,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:00:54,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:00:54,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:00:54,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:00:54,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:00:54,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:00:54,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:00:54,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:54,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:00:54,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:00:54,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:00:54,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:00:54,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:00:54,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:00:54,710 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:00:54,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:00:54,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:00:54,711 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:00:54,711 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 [2023-11-06 23:00:55,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:00:55,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:00:55,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:00:55,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:00:55,158 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:00:55,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-06 23:00:58,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:00:58,726 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:00:58,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-06 23:00:58,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/3e9abd11f/7de98750992444cc828ebcfdd833f43c/FLAG6f7010b41 [2023-11-06 23:00:58,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/3e9abd11f/7de98750992444cc828ebcfdd833f43c [2023-11-06 23:00:58,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:00:58,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:00:58,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:58,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:00:58,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:00:58,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:58" (1/1) ... [2023-11-06 23:00:58,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e74e822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:58, skipping insertion in model container [2023-11-06 23:00:58,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:58" (1/1) ... [2023-11-06 23:00:58,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:00:58,978 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-06 23:00:59,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:59,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:00:59,088 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-06 23:00:59,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:59,156 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:00:59,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59 WrapperNode [2023-11-06 23:00:59,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:59,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:59,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:00:59,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:00:59,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,273 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 292 [2023-11-06 23:00:59,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:59,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:00:59,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:00:59,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:00:59,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:00:59,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:00:59,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:00:59,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:00:59,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (1/1) ... [2023-11-06 23:00:59,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:59,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:59,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:00:59,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:00:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:00:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:00:59,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:00:59,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:00:59,616 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:00:59,619 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:00,421 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:00,429 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:00,430 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:01:00,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:00 BoogieIcfgContainer [2023-11-06 23:01:00,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:00,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:00,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:00,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:00,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:00:58" (1/3) ... [2023-11-06 23:01:00,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:00, skipping insertion in model container [2023-11-06 23:01:00,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:59" (2/3) ... [2023-11-06 23:01:00,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:00, skipping insertion in model container [2023-11-06 23:01:00,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:00" (3/3) ... [2023-11-06 23:01:00,445 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2023-11-06 23:01:00,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:00,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:01:00,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:00,556 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7d78d7b7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:00,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:01:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 55 states have (on average 1.6181818181818182) internal successors, (89), 56 states have internal predecessors, (89), 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) [2023-11-06 23:01:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:01:00,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:00,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:00,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:00,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash -478331423, now seen corresponding path program 1 times [2023-11-06 23:01:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017119217] [2023-11-06 23:01:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:00,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:01,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:01,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017119217] [2023-11-06 23:01:01,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017119217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:01,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:01,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:01:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540112381] [2023-11-06 23:01:01,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:01,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:01,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:01,359 INFO L87 Difference]: Start difference. First operand has 57 states, 55 states have (on average 1.6181818181818182) internal successors, (89), 56 states have internal predecessors, (89), 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) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-06 23:01:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:01,451 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2023-11-06 23:01:01,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2023-11-06 23:01:01,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:01,469 INFO L225 Difference]: With dead ends: 104 [2023-11-06 23:01:01,469 INFO L226 Difference]: Without dead ends: 55 [2023-11-06 23:01:01,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:01,477 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:01,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 237 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:01:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-06 23:01:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-06 23:01:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 54 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) [2023-11-06 23:01:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2023-11-06 23:01:01,525 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 13 [2023-11-06 23:01:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:01,525 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 85 transitions. [2023-11-06 23:01:01,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-06 23:01:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions. [2023-11-06 23:01:01,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:01:01,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:01,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:01,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:01:01,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:01,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:01,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1941647229, now seen corresponding path program 1 times [2023-11-06 23:01:01,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:01,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075763383] [2023-11-06 23:01:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:01,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:01,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075763383] [2023-11-06 23:01:01,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075763383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:01,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:01,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:01:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632376329] [2023-11-06 23:01:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:01,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:01,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:01,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:01,656 INFO L87 Difference]: Start difference. First operand 55 states and 85 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-06 23:01:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:01,688 INFO L93 Difference]: Finished difference Result 105 states and 162 transitions. [2023-11-06 23:01:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:01,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2023-11-06 23:01:01,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:01,690 INFO L225 Difference]: With dead ends: 105 [2023-11-06 23:01:01,691 INFO L226 Difference]: Without dead ends: 58 [2023-11-06 23:01:01,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:01,693 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:01,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 234 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:01:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-06 23:01:01,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2023-11-06 23:01:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 56 states have internal predecessors, (87), 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) [2023-11-06 23:01:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 87 transitions. [2023-11-06 23:01:01,703 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 87 transitions. Word has length 14 [2023-11-06 23:01:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:01,703 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 87 transitions. [2023-11-06 23:01:01,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-06 23:01:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 87 transitions. [2023-11-06 23:01:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 23:01:01,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:01,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:01,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:01:01,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:01,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash -271954373, now seen corresponding path program 1 times [2023-11-06 23:01:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:01,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856349467] [2023-11-06 23:01:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:02,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856349467] [2023-11-06 23:01:02,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856349467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:02,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:02,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:01:02,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435092695] [2023-11-06 23:01:02,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:02,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:01:02,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:01:02,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:01:02,005 INFO L87 Difference]: Start difference. First operand 57 states and 87 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-06 23:01:02,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:02,131 INFO L93 Difference]: Finished difference Result 148 states and 227 transitions. [2023-11-06 23:01:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:01:02,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) Word has length 15 [2023-11-06 23:01:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:02,134 INFO L225 Difference]: With dead ends: 148 [2023-11-06 23:01:02,134 INFO L226 Difference]: Without dead ends: 99 [2023-11-06 23:01:02,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:01:02,137 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 266 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:02,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 222 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:01:02,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-06 23:01:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 59. [2023-11-06 23:01:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 58 states have internal predecessors, (89), 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) [2023-11-06 23:01:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 89 transitions. [2023-11-06 23:01:02,148 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 89 transitions. Word has length 15 [2023-11-06 23:01:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:02,148 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 89 transitions. [2023-11-06 23:01:02,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-06 23:01:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 89 transitions. [2023-11-06 23:01:02,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 23:01:02,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:02,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:02,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:01:02,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:02,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 752438863, now seen corresponding path program 1 times [2023-11-06 23:01:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:02,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196859500] [2023-11-06 23:01:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:03,033 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:03,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:03,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196859500] [2023-11-06 23:01:03,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196859500] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:01:03,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438194044] [2023-11-06 23:01:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:03,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:01:03,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:01:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:03,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-06 23:01:03,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:03,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:01:03,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438194044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:03,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:01:03,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2023-11-06 23:01:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119624024] [2023-11-06 23:01:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:03,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:01:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:01:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-06 23:01:03,904 INFO L87 Difference]: Start difference. First operand 59 states and 89 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:04,572 INFO L93 Difference]: Finished difference Result 191 states and 291 transitions. [2023-11-06 23:01:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:01:04,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-06 23:01:04,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:04,575 INFO L225 Difference]: With dead ends: 191 [2023-11-06 23:01:04,575 INFO L226 Difference]: Without dead ends: 142 [2023-11-06 23:01:04,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-11-06 23:01:04,579 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 365 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:04,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 465 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:01:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-06 23:01:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 94. [2023-11-06 23:01:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.5161290322580645) internal successors, (141), 93 states have internal predecessors, (141), 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) [2023-11-06 23:01:04,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2023-11-06 23:01:04,595 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 46 [2023-11-06 23:01:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:04,596 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2023-11-06 23:01:04,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:01:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2023-11-06 23:01:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 23:01:04,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:04,599 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:04,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 23:01:04,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:04,811 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:04,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:04,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2076965691, now seen corresponding path program 1 times [2023-11-06 23:01:04,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:04,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288316130] [2023-11-06 23:01:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:04,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:05,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:05,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288316130] [2023-11-06 23:01:05,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288316130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:05,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:05,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:01:05,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833938382] [2023-11-06 23:01:05,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:05,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:01:05,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:01:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:05,429 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-06 23:01:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:05,444 INFO L93 Difference]: Finished difference Result 143 states and 216 transitions. [2023-11-06 23:01:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:01:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) Word has length 47 [2023-11-06 23:01:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:05,446 INFO L225 Difference]: With dead ends: 143 [2023-11-06 23:01:05,446 INFO L226 Difference]: Without dead ends: 91 [2023-11-06 23:01:05,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:01:05,451 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 69 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:05,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 185 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:01:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-06 23:01:05,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-06 23:01:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.511111111111111) internal successors, (136), 90 states have internal predecessors, (136), 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) [2023-11-06 23:01:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2023-11-06 23:01:05,481 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 47 [2023-11-06 23:01:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:05,482 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2023-11-06 23:01:05,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-06 23:01:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2023-11-06 23:01:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 23:01:05,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:05,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:05,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:01:05,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:05,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:05,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2035601879, now seen corresponding path program 1 times [2023-11-06 23:01:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:05,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799654453] [2023-11-06 23:01:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:05,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:06,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:06,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799654453] [2023-11-06 23:01:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799654453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:01:06,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708215334] [2023-11-06 23:01:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:06,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:01:06,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:06,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:01:06,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:01:06,223 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2023-11-06 23:01:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:06,473 INFO L93 Difference]: Finished difference Result 262 states and 392 transitions. [2023-11-06 23:01:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:01:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) Word has length 47 [2023-11-06 23:01:06,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:06,479 INFO L225 Difference]: With dead ends: 262 [2023-11-06 23:01:06,479 INFO L226 Difference]: Without dead ends: 213 [2023-11-06 23:01:06,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:01:06,488 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 270 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:06,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 642 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:01:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-06 23:01:06,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 117. [2023-11-06 23:01:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 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) [2023-11-06 23:01:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 174 transitions. [2023-11-06 23:01:06,517 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 174 transitions. Word has length 47 [2023-11-06 23:01:06,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:06,519 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 174 transitions. [2023-11-06 23:01:06,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2023-11-06 23:01:06,519 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 174 transitions. [2023-11-06 23:01:06,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-06 23:01:06,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:06,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:06,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:01:06,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:06,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:06,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1006557159, now seen corresponding path program 1 times [2023-11-06 23:01:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:06,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991738394] [2023-11-06 23:01:06,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:07,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:07,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991738394] [2023-11-06 23:01:07,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991738394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:07,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:07,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 23:01:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840849724] [2023-11-06 23:01:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:07,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:01:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:01:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:01:07,385 INFO L87 Difference]: Start difference. First operand 117 states and 174 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2023-11-06 23:01:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:07,731 INFO L93 Difference]: Finished difference Result 222 states and 328 transitions. [2023-11-06 23:01:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 23:01:07,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) Word has length 48 [2023-11-06 23:01:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:07,735 INFO L225 Difference]: With dead ends: 222 [2023-11-06 23:01:07,735 INFO L226 Difference]: Without dead ends: 156 [2023-11-06 23:01:07,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:01:07,736 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 214 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:07,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 303 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 23:01:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-06 23:01:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 131. [2023-11-06 23:01:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.4615384615384615) internal successors, (190), 130 states have internal predecessors, (190), 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) [2023-11-06 23:01:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2023-11-06 23:01:07,748 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 48 [2023-11-06 23:01:07,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:07,748 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2023-11-06 23:01:07,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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) [2023-11-06 23:01:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2023-11-06 23:01:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-06 23:01:07,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:07,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:01:07,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:07,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -609477117, now seen corresponding path program 1 times [2023-11-06 23:01:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:07,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644635884] [2023-11-06 23:01:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:08,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644635884] [2023-11-06 23:01:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644635884] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:01:08,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141295786] [2023-11-06 23:01:08,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:08,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:08,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:08,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:01:08,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:01:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:08,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-06 23:01:08,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:08,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:01:08,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141295786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:08,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:01:08,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2023-11-06 23:01:08,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911720773] [2023-11-06 23:01:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:08,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:01:08,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:08,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:01:08,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-06 23:01:08,872 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 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) [2023-11-06 23:01:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:09,444 INFO L93 Difference]: Finished difference Result 279 states and 404 transitions. [2023-11-06 23:01:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:01:09,445 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 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) Word has length 48 [2023-11-06 23:01:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:09,447 INFO L225 Difference]: With dead ends: 279 [2023-11-06 23:01:09,447 INFO L226 Difference]: Without dead ends: 175 [2023-11-06 23:01:09,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-06 23:01:09,451 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 298 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:09,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 431 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:01:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-06 23:01:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 134. [2023-11-06 23:01:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.443609022556391) internal successors, (192), 133 states have internal predecessors, (192), 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) [2023-11-06 23:01:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2023-11-06 23:01:09,480 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 192 transitions. Word has length 48 [2023-11-06 23:01:09,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:09,481 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 192 transitions. [2023-11-06 23:01:09,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 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) [2023-11-06 23:01:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 192 transitions. [2023-11-06 23:01:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-06 23:01:09,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:09,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:09,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:01:09,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:01:09,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:09,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:09,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1479540977, now seen corresponding path program 1 times [2023-11-06 23:01:09,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:09,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177027720] [2023-11-06 23:01:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:09,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:11,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:11,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177027720] [2023-11-06 23:01:11,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177027720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:11,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:11,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:01:11,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234062153] [2023-11-06 23:01:11,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:11,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 23:01:11,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 23:01:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:01:11,047 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2023-11-06 23:01:11,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:11,608 INFO L93 Difference]: Finished difference Result 320 states and 457 transitions. [2023-11-06 23:01:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 23:01:11,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) Word has length 49 [2023-11-06 23:01:11,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:11,610 INFO L225 Difference]: With dead ends: 320 [2023-11-06 23:01:11,610 INFO L226 Difference]: Without dead ends: 238 [2023-11-06 23:01:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2023-11-06 23:01:11,611 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 453 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:11,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 303 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 23:01:11,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-06 23:01:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 150. [2023-11-06 23:01:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.436241610738255) internal successors, (214), 149 states have internal predecessors, (214), 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) [2023-11-06 23:01:11,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 214 transitions. [2023-11-06 23:01:11,622 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 214 transitions. Word has length 49 [2023-11-06 23:01:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:11,623 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 214 transitions. [2023-11-06 23:01:11,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 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) [2023-11-06 23:01:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 214 transitions. [2023-11-06 23:01:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-06 23:01:11,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:11,624 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:11,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:01:11,625 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:11,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1698395695, now seen corresponding path program 1 times [2023-11-06 23:01:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463227256] [2023-11-06 23:01:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:12,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463227256] [2023-11-06 23:01:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463227256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:12,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:12,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:01:12,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143606331] [2023-11-06 23:01:12,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:12,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:01:12,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:12,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:01:12,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:01:12,417 INFO L87 Difference]: Start difference. First operand 150 states and 214 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-06 23:01:12,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:12,651 INFO L93 Difference]: Finished difference Result 277 states and 404 transitions. [2023-11-06 23:01:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:01:12,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) Word has length 49 [2023-11-06 23:01:12,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:12,654 INFO L225 Difference]: With dead ends: 277 [2023-11-06 23:01:12,655 INFO L226 Difference]: Without dead ends: 211 [2023-11-06 23:01:12,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:01:12,656 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 221 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:12,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 585 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:01:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-06 23:01:12,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 120. [2023-11-06 23:01:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 119 states have internal predecessors, (171), 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) [2023-11-06 23:01:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2023-11-06 23:01:12,664 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 171 transitions. Word has length 49 [2023-11-06 23:01:12,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:12,665 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 171 transitions. [2023-11-06 23:01:12,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-06 23:01:12,665 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 171 transitions. [2023-11-06 23:01:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 23:01:12,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:12,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:12,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:01:12,667 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:12,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1074816911, now seen corresponding path program 1 times [2023-11-06 23:01:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:12,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400423431] [2023-11-06 23:01:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:13,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:13,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400423431] [2023-11-06 23:01:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400423431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:13,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:13,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:01:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771102458] [2023-11-06 23:01:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:01:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:01:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:01:13,540 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-11-06 23:01:13,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:13,920 INFO L93 Difference]: Finished difference Result 222 states and 322 transitions. [2023-11-06 23:01:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 23:01:13,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) Word has length 50 [2023-11-06 23:01:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:13,923 INFO L225 Difference]: With dead ends: 222 [2023-11-06 23:01:13,924 INFO L226 Difference]: Without dead ends: 170 [2023-11-06 23:01:13,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:01:13,925 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 293 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:13,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 350 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 23:01:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-06 23:01:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2023-11-06 23:01:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.4344262295081966) internal successors, (175), 122 states have internal predecessors, (175), 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) [2023-11-06 23:01:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 175 transitions. [2023-11-06 23:01:13,935 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 175 transitions. Word has length 50 [2023-11-06 23:01:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:13,935 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 175 transitions. [2023-11-06 23:01:13,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2023-11-06 23:01:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 175 transitions. [2023-11-06 23:01:13,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 23:01:13,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:13,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:13,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:01:13,938 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:13,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:13,938 INFO L85 PathProgramCache]: Analyzing trace with hash 63699661, now seen corresponding path program 1 times [2023-11-06 23:01:13,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:13,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729979619] [2023-11-06 23:01:13,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:13,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:15,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:15,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729979619] [2023-11-06 23:01:15,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729979619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:15,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:15,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 23:01:15,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820787310] [2023-11-06 23:01:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:15,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:01:15,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:15,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:01:15,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:01:15,556 INFO L87 Difference]: Start difference. First operand 123 states and 175 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) [2023-11-06 23:01:16,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:16,266 INFO L93 Difference]: Finished difference Result 287 states and 406 transitions. [2023-11-06 23:01:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 23:01:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) Word has length 50 [2023-11-06 23:01:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:16,268 INFO L225 Difference]: With dead ends: 287 [2023-11-06 23:01:16,269 INFO L226 Difference]: Without dead ends: 174 [2023-11-06 23:01:16,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2023-11-06 23:01:16,270 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 529 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:16,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 595 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:01:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-06 23:01:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2023-11-06 23:01:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 124 states have internal predecessors, (177), 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) [2023-11-06 23:01:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 177 transitions. [2023-11-06 23:01:16,287 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 177 transitions. Word has length 50 [2023-11-06 23:01:16,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:16,288 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 177 transitions. [2023-11-06 23:01:16,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 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) [2023-11-06 23:01:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 177 transitions. [2023-11-06 23:01:16,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 23:01:16,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:16,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:16,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:01:16,290 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:16,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1291174321, now seen corresponding path program 1 times [2023-11-06 23:01:16,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:16,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400989648] [2023-11-06 23:01:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:16,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:17,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:17,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400989648] [2023-11-06 23:01:17,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400989648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:17,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:17,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 23:01:17,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473580620] [2023-11-06 23:01:17,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:17,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:01:17,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:01:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:01:17,273 INFO L87 Difference]: Start difference. First operand 125 states and 177 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2023-11-06 23:01:18,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:18,145 INFO L93 Difference]: Finished difference Result 373 states and 532 transitions. [2023-11-06 23:01:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 23:01:18,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) Word has length 50 [2023-11-06 23:01:18,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:18,147 INFO L225 Difference]: With dead ends: 373 [2023-11-06 23:01:18,147 INFO L226 Difference]: Without dead ends: 211 [2023-11-06 23:01:18,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2023-11-06 23:01:18,150 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 636 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:18,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 703 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:01:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-06 23:01:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 127. [2023-11-06 23:01:18,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.4047619047619047) internal successors, (177), 126 states have internal predecessors, (177), 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) [2023-11-06 23:01:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 177 transitions. [2023-11-06 23:01:18,161 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 177 transitions. Word has length 50 [2023-11-06 23:01:18,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:18,161 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 177 transitions. [2023-11-06 23:01:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2023-11-06 23:01:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 177 transitions. [2023-11-06 23:01:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 23:01:18,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:18,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:18,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:01:18,163 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:18,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2091019859, now seen corresponding path program 1 times [2023-11-06 23:01:18,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:18,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635099358] [2023-11-06 23:01:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:19,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:19,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635099358] [2023-11-06 23:01:19,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635099358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:19,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:19,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 23:01:19,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768368055] [2023-11-06 23:01:19,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:19,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 23:01:19,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:19,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 23:01:19,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:01:19,033 INFO L87 Difference]: Start difference. First operand 127 states and 177 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-11-06 23:01:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:19,342 INFO L93 Difference]: Finished difference Result 192 states and 271 transitions. [2023-11-06 23:01:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:01:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) Word has length 51 [2023-11-06 23:01:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:19,344 INFO L225 Difference]: With dead ends: 192 [2023-11-06 23:01:19,344 INFO L226 Difference]: Without dead ends: 138 [2023-11-06 23:01:19,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:01:19,345 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 186 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:19,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 262 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 23:01:19,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-06 23:01:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 130. [2023-11-06 23:01:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4031007751937985) internal successors, (181), 129 states have internal predecessors, (181), 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) [2023-11-06 23:01:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 181 transitions. [2023-11-06 23:01:19,353 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 181 transitions. Word has length 51 [2023-11-06 23:01:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:19,354 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 181 transitions. [2023-11-06 23:01:19,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2023-11-06 23:01:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 181 transitions. [2023-11-06 23:01:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 23:01:19,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:19,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:19,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 23:01:19,355 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:19,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1502882859, now seen corresponding path program 1 times [2023-11-06 23:01:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:19,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123847384] [2023-11-06 23:01:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:19,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:01:19,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:01:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:01:19,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:01:19,699 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:01:19,700 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 23:01:19,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 23:01:19,705 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:19,708 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:01:19,777 WARN L316 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-06 23:01:19,777 WARN L316 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-06 23:01:19,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:01:19 BoogieIcfgContainer [2023-11-06 23:01:19,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:01:19,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:01:19,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:01:19,810 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:01:19,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:00" (3/4) ... [2023-11-06 23:01:19,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:01:19,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:01:19,814 INFO L158 Benchmark]: Toolchain (without parser) took 21046.15ms. Allocated memory was 159.4MB in the beginning and 360.7MB in the end (delta: 201.3MB). Free memory was 111.9MB in the beginning and 252.5MB in the end (delta: -140.6MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,814 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:01:19,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.30ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 97.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.27ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 91.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,816 INFO L158 Benchmark]: Boogie Preprocessor took 74.92ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 88.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,817 INFO L158 Benchmark]: RCFGBuilder took 1074.15ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 88.2MB in the beginning and 162.4MB in the end (delta: -74.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,817 INFO L158 Benchmark]: TraceAbstraction took 19371.86ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 161.4MB in the beginning and 252.5MB in the end (delta: -91.1MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2023-11-06 23:01:19,818 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 360.7MB. Free memory is still 252.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:01:19,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.30ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 97.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.27ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 91.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.92ms. Allocated memory is still 159.4MB. Free memory was 91.3MB in the beginning and 88.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1074.15ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 88.2MB in the beginning and 162.4MB in the end (delta: -74.2MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19371.86ms. Allocated memory was 207.6MB in the beginning and 360.7MB in the end (delta: 153.1MB). Free memory was 161.4MB in the beginning and 252.5MB in the end (delta: -91.1MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 360.7MB. Free memory is still 252.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 78, overapproximation of bitwiseOr at line 134, overapproximation of bitwiseAnd at line 147. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_4 var_5 = 0; [L33] const SORT_1 var_14 = 1; [L34] const SORT_4 var_19 = 1; [L35] const SORT_4 var_22 = 15; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L40] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [__VERIFIER_nondet_uchar() & mask_SORT_4=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, var_14=1, var_19=1, var_22=15, var_5=0] [L40] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L41] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [__VERIFIER_nondet_uchar() & mask_SORT_4=0, __VERIFIER_nondet_uchar()=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, var_14=1, var_19=1, var_22=15, var_5=0] [L41] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 init_7_arg_1 = var_5; [L44] state_6 = init_7_arg_1 [L45] SORT_4 init_9_arg_1 = var_5; [L46] state_8 = init_9_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_14=1, var_19=1, var_22=15, var_5=0] [L49] input_2 = __VERIFIER_nondet_uchar() [L50] input_3 = __VERIFIER_nondet_uchar() [L53] SORT_4 var_10_arg_0 = state_6; [L54] SORT_4 var_10_arg_1 = state_8; [L55] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L56] SORT_1 var_11_arg_0 = var_10; [L57] SORT_1 var_11 = ~var_11_arg_0; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L62] EXPR var_16_arg_0 & var_16_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16_arg_0 & var_16_arg_1=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] EXPR var_16 & mask_SORT_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16 & mask_SORT_1=0, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_5=0] [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_1 var_31_arg_0 = input_3; [L68] SORT_1 var_31 = ~var_31_arg_0; [L69] SORT_4 var_32_arg_0 = state_6; [L70] SORT_4 var_32_arg_1 = state_8; [L71] SORT_1 var_32 = var_32_arg_0 > var_32_arg_1; [L72] SORT_1 var_33_arg_0 = var_31; [L73] SORT_1 var_33_arg_1 = var_32; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L74] EXPR var_33_arg_0 & var_33_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33_arg_0 & var_33_arg_1=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L74] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L75] EXPR var_33 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33 & mask_SORT_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L75] var_33 = var_33 & mask_SORT_1 [L76] SORT_4 var_28_arg_0 = var_22; [L77] SORT_4 var_28_arg_1 = var_19; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28_arg_0=15, var_28_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L78] EXPR var_28_arg_0 >> var_28_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28_arg_0 >> var_28_arg_1=-255, var_28_arg_0=15, var_28_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L78] SORT_4 var_28 = var_28_arg_0 >> var_28_arg_1; [L79] SORT_4 var_29_arg_0 = state_6; [L80] SORT_4 var_29_arg_1 = var_19; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29_arg_0=0, var_29_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L81] EXPR var_29_arg_0 >> var_29_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_22=15, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29_arg_0 >> var_29_arg_1=0, var_29_arg_0=0, var_29_arg_1=1, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L81] SORT_4 var_29 = var_29_arg_0 >> var_29_arg_1; [L82] SORT_4 var_30_arg_0 = var_28; [L83] SORT_4 var_30_arg_1 = var_29; [L84] SORT_4 var_30 = var_30_arg_0 + var_30_arg_1; [L85] SORT_4 var_26_arg_0 = state_6; [L86] SORT_4 var_26_arg_1 = state_8; [L87] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L88] SORT_4 var_21_arg_0 = state_8; [L89] SORT_4 var_21_arg_1 = state_6; [L90] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L91] SORT_4 var_23_arg_0 = state_6; [L92] SORT_4 var_23_arg_1 = var_22; [L93] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L94] SORT_1 var_24_arg_0 = var_21; [L95] SORT_1 var_24_arg_1 = var_23; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L96] EXPR var_24_arg_0 | var_24_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24_arg_0 | var_24_arg_1=1, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L96] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L97] EXPR var_24 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24 & mask_SORT_1=1, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_5=0] [L97] var_24 = var_24 & mask_SORT_1 [L98] SORT_4 var_20_arg_0 = state_6; [L99] SORT_4 var_20_arg_1 = var_19; [L100] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L101] SORT_1 var_25_arg_0 = var_24; [L102] SORT_4 var_25_arg_1 = var_20; [L103] SORT_4 var_25_arg_2 = state_8; [L104] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L105] SORT_1 var_27_arg_0 = var_26; [L106] SORT_4 var_27_arg_1 = state_6; [L107] SORT_4 var_27_arg_2 = var_25; [L108] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L109] SORT_1 var_34_arg_0 = var_33; [L110] SORT_4 var_34_arg_1 = var_30; [L111] SORT_4 var_34_arg_2 = var_27; [L112] SORT_4 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=1, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_5=0] [L113] EXPR var_34 & mask_SORT_4 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34 & mask_SORT_4=0, var_34=1, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_5=0] [L113] var_34 = var_34 & mask_SORT_4 [L114] SORT_4 next_35_arg_1 = var_34; [L115] SORT_1 var_42_arg_0 = input_3; [L116] SORT_1 var_42 = ~var_42_arg_0; [L117] SORT_4 var_43_arg_0 = state_6; [L118] SORT_4 var_43_arg_1 = state_8; [L119] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L120] SORT_1 var_44_arg_0 = var_42; [L121] SORT_1 var_44_arg_1 = var_43; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L122] EXPR var_44_arg_0 & var_44_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44_arg_0 & var_44_arg_1=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L122] SORT_1 var_44 = var_44_arg_0 & var_44_arg_1; [L123] EXPR var_44 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44 & mask_SORT_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L123] var_44 = var_44 & mask_SORT_1 [L124] SORT_4 var_37_arg_0 = state_6; [L125] SORT_4 var_37_arg_1 = state_8; [L126] SORT_1 var_37 = var_37_arg_0 > var_37_arg_1; [L127] SORT_1 var_38_arg_0 = var_37; [L128] SORT_1 var_38 = ~var_38_arg_0; [L129] SORT_4 var_39_arg_0 = state_6; [L130] SORT_4 var_39_arg_1 = var_22; [L131] SORT_1 var_39 = var_39_arg_0 != var_39_arg_1; [L132] SORT_1 var_40_arg_0 = var_38; [L133] SORT_1 var_40_arg_1 = var_39; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L134] EXPR var_40_arg_0 | var_40_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40_arg_0 | var_40_arg_1=255, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L134] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L135] EXPR var_40 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40 & mask_SORT_1=1, var_40=255, var_40_arg_0=255, var_40_arg_1=1, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_5=0] [L135] var_40 = var_40 & mask_SORT_1 [L136] SORT_4 var_36_arg_0 = state_8; [L137] SORT_4 var_36_arg_1 = var_19; [L138] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L139] SORT_1 var_41_arg_0 = var_40; [L140] SORT_4 var_41_arg_1 = var_36; [L141] SORT_4 var_41_arg_2 = state_6; [L142] SORT_4 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L143] SORT_1 var_45_arg_0 = var_44; [L144] SORT_4 var_45_arg_1 = state_8; [L145] SORT_4 var_45_arg_2 = var_41; [L146] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L147] EXPR var_45 & mask_SORT_4 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, state_6=0, state_8=0, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45 & mask_SORT_4=1, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L147] var_45 = var_45 & mask_SORT_4 [L148] SORT_4 next_46_arg_1 = var_45; [L150] state_6 = next_35_arg_1 [L151] state_8 = next_46_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, input_3=255, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=0, var_10_arg_0=0, var_10_arg_1=0, var_11=255, var_11_arg_0=0, var_14=1, var_15=0, var_15_arg_0=255, var_16=0, var_16_arg_0=1, var_16_arg_1=0, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L49] input_2 = __VERIFIER_nondet_uchar() [L50] input_3 = __VERIFIER_nondet_uchar() [L53] SORT_4 var_10_arg_0 = state_6; [L54] SORT_4 var_10_arg_1 = state_8; [L55] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L56] SORT_1 var_11_arg_0 = var_10; [L57] SORT_1 var_11 = ~var_11_arg_0; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16=0, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L62] EXPR var_16_arg_0 & var_16_arg_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16=0, var_16_arg_0 & var_16_arg_1=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] EXPR var_16 & mask_SORT_1 VAL [bad_17_arg_0=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, next_35_arg_1=0, next_46_arg_1=1, state_6=0, state_8=1, var_10=1, var_10_arg_0=0, var_10_arg_1=1, var_11=254, var_11_arg_0=1, var_14=1, var_15=1, var_15_arg_0=254, var_16 & mask_SORT_1=1, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=1, var_20_arg_0=0, var_20_arg_1=1, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=15, var_23=1, var_23_arg_0=0, var_23_arg_1=15, var_24=1, var_24_arg_0=1, var_24_arg_1=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_25_arg_2=0, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_27_arg_2=1, var_28=1, var_28_arg_0=15, var_28_arg_1=1, var_29=0, var_29_arg_0=0, var_29_arg_1=1, var_30=1, var_30_arg_0=1, var_30_arg_1=0, var_31=0, var_31_arg_0=255, var_32=0, var_32_arg_0=0, var_32_arg_1=0, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=1, var_34_arg_2=1, var_36=1, var_36_arg_0=0, var_36_arg_1=1, var_37=0, var_37_arg_0=0, var_37_arg_1=0, var_38=255, var_38_arg_0=0, var_39=1, var_39_arg_0=0, var_39_arg_1=15, var_40=1, var_40_arg_0=255, var_40_arg_1=1, var_41=1, var_41_arg_0=1, var_41_arg_1=1, var_41_arg_2=0, var_42=0, var_42_arg_0=255, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_45=1, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=1, var_5=0] [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.2s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3802 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3802 mSDsluCounter, 5517 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4307 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2186 IncrementalHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1210 mSDtfsCounter, 2186 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=9, InterpolantAutomatonStates: 139, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 618 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 722 NumberOfCodeBlocks, 722 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 655 ConstructedInterpolants, 0 QuantifiedInterpolants, 4090 SizeOfPredicates, 21 NumberOfNonLiveVariables, 677 ConjunctsInSsa, 100 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 70/78 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 23:01:19,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:01:22,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:01:22,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 23:01:22,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:01:22,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:01:22,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:01:22,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:01:22,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:01:22,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:01:22,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:01:22,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:01:22,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:01:22,757 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:01:22,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:01:22,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:01:22,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:01:22,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:01:22,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:01:22,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:01:22,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:01:22,763 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:01:22,764 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:01:22,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:01:22,765 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:01:22,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:01:22,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:01:22,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:01:22,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:22,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:01:22,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:01:22,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:01:22,769 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:01:22,769 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:01:22,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:01:22,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:01:22,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:01:22,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:01:22,771 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:01:22,771 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:01:22,772 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16f8726a4add15d0bf2494bd44888be53eb7bc01110882b6fc03ef148c6d9055 [2023-11-06 23:01:23,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:01:23,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:01:23,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:01:23,272 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:01:23,272 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:01:23,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-06 23:01:26,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:01:26,619 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:01:26,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2023-11-06 23:01:26,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/e92b9cf34/679bf08d2ba645b09a1f293f149c18dc/FLAGd94caf0b5 [2023-11-06 23:01:26,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/data/e92b9cf34/679bf08d2ba645b09a1f293f149c18dc [2023-11-06 23:01:26,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:01:26,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:01:26,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:26,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:01:26,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:01:26,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:26" (1/1) ... [2023-11-06 23:01:26,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a85ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:26, skipping insertion in model container [2023-11-06 23:01:26,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:26" (1/1) ... [2023-11-06 23:01:26,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:01:26,834 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-06 23:01:26,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:26,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:01:26,925 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1248,1261] [2023-11-06 23:01:26,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:27,007 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:01:27,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27 WrapperNode [2023-11-06 23:01:27,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:27,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:27,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:01:27,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:01:27,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,086 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 144 [2023-11-06 23:01:27,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:27,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:01:27,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:01:27,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:01:27,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:01:27,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:01:27,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:01:27,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:01:27,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (1/1) ... [2023-11-06 23:01:27,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:27,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:27,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:01:27,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:01:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:01:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:01:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:01:27,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:01:27,443 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:01:27,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:27,782 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:27,788 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:27,788 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:01:27,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:27 BoogieIcfgContainer [2023-11-06 23:01:27,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:27,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:27,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:27,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:27,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:01:26" (1/3) ... [2023-11-06 23:01:27,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd5c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:27, skipping insertion in model container [2023-11-06 23:01:27,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:27" (2/3) ... [2023-11-06 23:01:27,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd5c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:27, skipping insertion in model container [2023-11-06 23:01:27,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:27" (3/3) ... [2023-11-06 23:01:27,804 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2023-11-06 23:01:27,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:27,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:01:27,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:01:27,892 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4da62986, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:01:27,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:01:27,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-06 23:01:27,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 23:01:27,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:27,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:01:27,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:27,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-06 23:01:27,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:01:27,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171428026] [2023-11-06 23:01:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:27,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:01:27,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:01:27,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:01:27,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 23:01:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:28,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 23:01:28,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:28,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:01:28,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:01:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171428026] [2023-11-06 23:01:28,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171428026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:28,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:28,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:01:28,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197088015] [2023-11-06 23:01:28,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:28,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:01:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:01:28,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:01:28,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:01:28,447 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 23:01:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:28,535 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-06 23:01:28,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:01:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2023-11-06 23:01:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:28,555 INFO L225 Difference]: With dead ends: 19 [2023-11-06 23:01:28,556 INFO L226 Difference]: Without dead ends: 10 [2023-11-06 23:01:28,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:01:28,562 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:28,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:01:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-06 23:01:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-06 23:01:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-06 23:01:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-06 23:01:28,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-06 23:01:28,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:28,597 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-06 23:01:28,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 23:01:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-06 23:01:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:01:28,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:28,598 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 23:01:28,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:01:28,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:01:28,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:28,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-06 23:01:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:01:28,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805654432] [2023-11-06 23:01:28,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:28,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:01:28,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:01:28,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:01:28,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 23:01:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:28,946 WARN L260 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-06 23:01:28,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:30,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:01:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:56,464 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:01:56,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805654432] [2023-11-06 23:01:56,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805654432] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:01:56,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:01:56,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 23:01:56,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837581538] [2023-11-06 23:01:56,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:01:56,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:01:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:01:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:01:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:01:56,469 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2023-11-06 23:01:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:56,668 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2023-11-06 23:01:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:01:56,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) Word has length 8 [2023-11-06 23:01:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:56,669 INFO L225 Difference]: With dead ends: 18 [2023-11-06 23:01:56,670 INFO L226 Difference]: Without dead ends: 16 [2023-11-06 23:01:56,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:01:56,672 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:01:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-06 23:01:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-06 23:01:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-11-06 23:01:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-06 23:01:56,678 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-11-06 23:01:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:56,678 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-06 23:01:56,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2023-11-06 23:01:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-06 23:01:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:01:56,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:56,680 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-06 23:01:56,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-06 23:01:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:01:56,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:01:56,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2023-11-06 23:01:56,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:01:56,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424212193] [2023-11-06 23:01:56,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:01:56,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:01:56,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:01:56,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:01:56,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15353eaf-4235-4460-b12c-2f1bc65da9a0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 23:01:57,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:01:57,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:01:57,216 WARN L260 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 167 conjunts are in the unsatisfiable core [2023-11-06 23:01:57,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:01:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:01:58,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:02:28,857 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification that was a NOOP. DAG size: 1098 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)