./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash aec3d6b735697765f122fd4969787ab3e5c22f1789977e4ce823d6b216b50af2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:17:44,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:17:44,702 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:17:44,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:17:44,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:17:44,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:17:44,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:17:44,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:17:44,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:17:44,742 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:17:44,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:17:44,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:17:44,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:17:44,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:17:44,744 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:17:44,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:17:44,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:17:44,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:17:44,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:17:44,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:17:44,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:17:44,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:17:44,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:17:44,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:17:44,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:17:44,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:17:44,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:17:44,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:17:44,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:17:44,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:17:44,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:17:44,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:17:44,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:17:44,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:17:44,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:17:44,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:17:44,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:17:44,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:17:44,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:17:44,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:17:44,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:17:44,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:17:44,761 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aec3d6b735697765f122fd4969787ab3e5c22f1789977e4ce823d6b216b50af2 [2024-10-23 21:17:45,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:17:45,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:17:45,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:17:45,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:17:45,113 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:17:45,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2024-10-23 21:17:46,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:17:46,935 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:17:46,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c [2024-10-23 21:17:46,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/051020dfa/0f668fbc1e7b47d9a7a19d9393db5275/FLAG1e733e162 [2024-10-23 21:17:47,200 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/051020dfa/0f668fbc1e7b47d9a7a19d9393db5275 [2024-10-23 21:17:47,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:17:47,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:17:47,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:17:47,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:17:47,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:17:47,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:47,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b605d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47, skipping insertion in model container [2024-10-23 21:17:47,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:47,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:17:47,523 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2024-10-23 21:17:47,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:17:47,716 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:17:47,759 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label33.c[5937,5950] [2024-10-23 21:17:47,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:17:47,874 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:17:47,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47 WrapperNode [2024-10-23 21:17:47,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:17:47,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:17:47,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:17:47,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:17:47,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:47,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:47,977 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-10-23 21:17:47,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:17:47,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:17:47,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:17:47,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:17:47,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:47,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,048 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:17:48,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:17:48,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:17:48,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:17:48,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:17:48,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (1/1) ... [2024-10-23 21:17:48,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:17:48,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:17:48,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:17:48,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:17:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:17:48,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:17:48,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:17:48,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:17:48,290 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:17:48,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:17:49,812 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-10-23 21:17:49,812 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:17:49,886 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:17:49,887 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:17:49,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:17:49 BoogieIcfgContainer [2024-10-23 21:17:49,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:17:49,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:17:49,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:17:49,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:17:49,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:17:47" (1/3) ... [2024-10-23 21:17:49,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd515d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:17:49, skipping insertion in model container [2024-10-23 21:17:49,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:17:47" (2/3) ... [2024-10-23 21:17:49,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd515d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:17:49, skipping insertion in model container [2024-10-23 21:17:49,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:17:49" (3/3) ... [2024-10-23 21:17:49,898 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label33.c [2024-10-23 21:17:49,916 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:17:49,917 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:17:49,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:17:50,006 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10ea4cb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:17:50,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:17:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:50,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-23 21:17:50,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:50,021 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:50,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:50,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash -531067996, now seen corresponding path program 1 times [2024-10-23 21:17:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:50,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035891683] [2024-10-23 21:17:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:17:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:50,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035891683] [2024-10-23 21:17:50,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035891683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:50,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:50,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:17:50,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902821143] [2024-10-23 21:17:50,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:50,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:17:50,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:50,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:17:50,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:17:50,293 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:50,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:50,350 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2024-10-23 21:17:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:17:50,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2024-10-23 21:17:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:50,366 INFO L225 Difference]: With dead ends: 365 [2024-10-23 21:17:50,366 INFO L226 Difference]: Without dead ends: 181 [2024-10-23 21:17:50,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:17:50,376 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:50,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:17:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-23 21:17:50,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-10-23 21:17:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2024-10-23 21:17:50,433 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 57 [2024-10-23 21:17:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:50,436 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2024-10-23 21:17:50,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:50,436 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2024-10-23 21:17:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-23 21:17:50,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:50,438 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:50,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:17:50,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:50,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:50,439 INFO L85 PathProgramCache]: Analyzing trace with hash -260997874, now seen corresponding path program 1 times [2024-10-23 21:17:50,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:50,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124471234] [2024-10-23 21:17:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:50,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:17:50,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:50,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124471234] [2024-10-23 21:17:50,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124471234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:50,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:50,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:17:50,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976232367] [2024-10-23 21:17:50,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:50,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:17:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:17:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:17:50,664 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:51,467 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2024-10-23 21:17:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:17:51,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2024-10-23 21:17:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:51,470 INFO L225 Difference]: With dead ends: 539 [2024-10-23 21:17:51,471 INFO L226 Difference]: Without dead ends: 359 [2024-10-23 21:17:51,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:17:51,473 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:51,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 51 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:17:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-23 21:17:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-10-23 21:17:51,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.5223463687150838) internal successors, (545), 358 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 545 transitions. [2024-10-23 21:17:51,517 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 545 transitions. Word has length 57 [2024-10-23 21:17:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:51,518 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 545 transitions. [2024-10-23 21:17:51,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 545 transitions. [2024-10-23 21:17:51,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-23 21:17:51,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:51,525 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:17:51,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:17:51,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:51,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:51,527 INFO L85 PathProgramCache]: Analyzing trace with hash 953137571, now seen corresponding path program 1 times [2024-10-23 21:17:51,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:51,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105910096] [2024-10-23 21:17:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:51,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:17:51,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105910096] [2024-10-23 21:17:51,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105910096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:51,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:51,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:17:51,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756746071] [2024-10-23 21:17:51,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:51,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:17:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:17:51,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:17:51,741 INFO L87 Difference]: Start difference. First operand 359 states and 545 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:52,463 INFO L93 Difference]: Finished difference Result 1073 states and 1632 transitions. [2024-10-23 21:17:52,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:17:52,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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 132 [2024-10-23 21:17:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:52,468 INFO L225 Difference]: With dead ends: 1073 [2024-10-23 21:17:52,468 INFO L226 Difference]: Without dead ends: 715 [2024-10-23 21:17:52,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:17:52,471 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:52,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 93 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:17:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-10-23 21:17:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2024-10-23 21:17:52,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.354341736694678) internal successors, (967), 714 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 967 transitions. [2024-10-23 21:17:52,506 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 967 transitions. Word has length 132 [2024-10-23 21:17:52,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:52,509 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 967 transitions. [2024-10-23 21:17:52,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 967 transitions. [2024-10-23 21:17:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-23 21:17:52,511 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:52,512 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:17:52,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:17:52,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:52,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:52,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1541307673, now seen corresponding path program 1 times [2024-10-23 21:17:52,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:52,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230563382] [2024-10-23 21:17:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:52,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:17:52,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:52,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230563382] [2024-10-23 21:17:52,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230563382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:52,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:52,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:17:52,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019526105] [2024-10-23 21:17:52,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:52,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:17:52,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:52,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:17:52,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:17:52,938 INFO L87 Difference]: Start difference. First operand 715 states and 967 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 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) [2024-10-23 21:17:53,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:53,950 INFO L93 Difference]: Finished difference Result 1963 states and 2569 transitions. [2024-10-23 21:17:53,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:17:53,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 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) Word has length 136 [2024-10-23 21:17:53,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:53,956 INFO L225 Difference]: With dead ends: 1963 [2024-10-23 21:17:53,956 INFO L226 Difference]: Without dead ends: 1249 [2024-10-23 21:17:53,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:17:53,962 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:53,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 119 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:17:53,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-23 21:17:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2024-10-23 21:17:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.236378205128205) internal successors, (1543), 1248 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1543 transitions. [2024-10-23 21:17:54,014 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1543 transitions. Word has length 136 [2024-10-23 21:17:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:54,015 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1543 transitions. [2024-10-23 21:17:54,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 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) [2024-10-23 21:17:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1543 transitions. [2024-10-23 21:17:54,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-23 21:17:54,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:54,024 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:54,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:17:54,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:54,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1739105939, now seen corresponding path program 1 times [2024-10-23 21:17:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:54,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062135817] [2024-10-23 21:17:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:54,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-23 21:17:54,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:54,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062135817] [2024-10-23 21:17:54,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062135817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:54,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:54,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:17:54,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419962472] [2024-10-23 21:17:54,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:54,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:17:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:17:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:17:54,426 INFO L87 Difference]: Start difference. First operand 1249 states and 1543 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 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) [2024-10-23 21:17:55,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:55,161 INFO L93 Difference]: Finished difference Result 2704 states and 3352 transitions. [2024-10-23 21:17:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:17:55,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 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) Word has length 216 [2024-10-23 21:17:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:55,167 INFO L225 Difference]: With dead ends: 2704 [2024-10-23 21:17:55,167 INFO L226 Difference]: Without dead ends: 1605 [2024-10-23 21:17:55,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:17:55,170 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 102 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:55,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:17:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-10-23 21:17:55,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2024-10-23 21:17:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1604 states have (on average 1.1221945137157108) internal successors, (1800), 1604 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1800 transitions. [2024-10-23 21:17:55,201 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1800 transitions. Word has length 216 [2024-10-23 21:17:55,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:55,201 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 1800 transitions. [2024-10-23 21:17:55,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 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) [2024-10-23 21:17:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1800 transitions. [2024-10-23 21:17:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-10-23 21:17:55,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:55,206 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:55,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:17:55,207 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:55,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1059775836, now seen corresponding path program 1 times [2024-10-23 21:17:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:55,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119097453] [2024-10-23 21:17:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:55,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 215 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-10-23 21:17:55,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:55,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119097453] [2024-10-23 21:17:55,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119097453] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:17:55,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322339591] [2024-10-23 21:17:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:55,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:17:55,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:17:55,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:17:55,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:17:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:55,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:17:55,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:17:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-23 21:17:56,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:17:56,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322339591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:56,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:17:56,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-23 21:17:56,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171503862] [2024-10-23 21:17:56,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:56,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:17:56,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:56,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:17:56,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:17:56,050 INFO L87 Difference]: Start difference. First operand 1605 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:56,656 INFO L93 Difference]: Finished difference Result 3387 states and 3900 transitions. [2024-10-23 21:17:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:17:56,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 343 [2024-10-23 21:17:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:56,669 INFO L225 Difference]: With dead ends: 3387 [2024-10-23 21:17:56,669 INFO L226 Difference]: Without dead ends: 1961 [2024-10-23 21:17:56,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:17:56,672 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:56,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 251 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:17:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2024-10-23 21:17:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961. [2024-10-23 21:17:56,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 1.1321428571428571) internal successors, (2219), 1960 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2219 transitions. [2024-10-23 21:17:56,710 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2219 transitions. Word has length 343 [2024-10-23 21:17:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:56,712 INFO L471 AbstractCegarLoop]: Abstraction has 1961 states and 2219 transitions. [2024-10-23 21:17:56,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:56,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2219 transitions. [2024-10-23 21:17:56,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-23 21:17:56,716 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:56,716 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:56,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:17:56,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-23 21:17:56,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:56,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1336314470, now seen corresponding path program 1 times [2024-10-23 21:17:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:56,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008073082] [2024-10-23 21:17:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:56,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-23 21:17:57,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:57,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008073082] [2024-10-23 21:17:57,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008073082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:57,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:17:57,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:17:57,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676701240] [2024-10-23 21:17:57,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:57,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:17:57,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:57,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:17:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:17:57,383 INFO L87 Difference]: Start difference. First operand 1961 states and 2219 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:57,889 INFO L93 Difference]: Finished difference Result 4099 states and 4688 transitions. [2024-10-23 21:17:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:17:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 347 [2024-10-23 21:17:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:57,898 INFO L225 Difference]: With dead ends: 4099 [2024-10-23 21:17:57,898 INFO L226 Difference]: Without dead ends: 2317 [2024-10-23 21:17:57,901 INFO L431 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 [2024-10-23 21:17:57,902 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 100 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:57,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 56 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:17:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2024-10-23 21:17:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2317. [2024-10-23 21:17:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2316 states have (on average 1.1278065630397236) internal successors, (2612), 2316 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2612 transitions. [2024-10-23 21:17:57,941 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2612 transitions. Word has length 347 [2024-10-23 21:17:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:57,942 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 2612 transitions. [2024-10-23 21:17:57,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2612 transitions. [2024-10-23 21:17:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-23 21:17:57,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:57,947 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:17:57,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:17:57,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:57,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1220392436, now seen corresponding path program 1 times [2024-10-23 21:17:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:57,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054428947] [2024-10-23 21:17:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 222 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:17:58,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:17:58,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054428947] [2024-10-23 21:17:58,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054428947] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:17:58,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685676931] [2024-10-23 21:17:58,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:58,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:17:58,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:17:58,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:17:58,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:17:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:17:58,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:17:58,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:17:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-10-23 21:17:58,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:17:58,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685676931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:17:58,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:17:58,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-23 21:17:58,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110436936] [2024-10-23 21:17:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:17:58,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:17:58,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:17:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:17:58,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:17:58,904 INFO L87 Difference]: Start difference. First operand 2317 states and 2612 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:17:59,481 INFO L93 Difference]: Finished difference Result 4989 states and 5717 transitions. [2024-10-23 21:17:59,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:17:59,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 350 [2024-10-23 21:17:59,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:17:59,491 INFO L225 Difference]: With dead ends: 4989 [2024-10-23 21:17:59,492 INFO L226 Difference]: Without dead ends: 2851 [2024-10-23 21:17:59,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:17:59,496 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:17:59,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 45 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:17:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2024-10-23 21:17:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2673. [2024-10-23 21:17:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 1.1126497005988023) internal successors, (2973), 2672 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 2973 transitions. [2024-10-23 21:17:59,547 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 2973 transitions. Word has length 350 [2024-10-23 21:17:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:17:59,548 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 2973 transitions. [2024-10-23 21:17:59,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:17:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 2973 transitions. [2024-10-23 21:17:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-10-23 21:17:59,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:17:59,553 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-10-23 21:17:59,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 21:17:59,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-23 21:17:59,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:17:59,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:17:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1794301128, now seen corresponding path program 1 times [2024-10-23 21:17:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:17:59,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445385311] [2024-10-23 21:17:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:17:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:17:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-23 21:18:00,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:00,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445385311] [2024-10-23 21:18:00,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445385311] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:18:00,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662426382] [2024-10-23 21:18:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:00,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:18:00,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:18:00,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 21:18:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:00,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:18:00,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:18:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-23 21:18:00,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:18:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662426382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:00,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:18:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-23 21:18:00,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355549997] [2024-10-23 21:18:00,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:00,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:00,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:00,392 INFO L87 Difference]: Start difference. First operand 2673 states and 2973 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:00,938 INFO L93 Difference]: Finished difference Result 5701 states and 6437 transitions. [2024-10-23 21:18:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:00,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 374 [2024-10-23 21:18:00,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:00,949 INFO L225 Difference]: With dead ends: 5701 [2024-10-23 21:18:00,949 INFO L226 Difference]: Without dead ends: 3207 [2024-10-23 21:18:00,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:00,955 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 128 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:00,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 65 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:18:00,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2024-10-23 21:18:00,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2851. [2024-10-23 21:18:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.1164912280701755) internal successors, (3182), 2850 states have internal predecessors, (3182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3182 transitions. [2024-10-23 21:18:01,010 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3182 transitions. Word has length 374 [2024-10-23 21:18:01,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:01,010 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 3182 transitions. [2024-10-23 21:18:01,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3182 transitions. [2024-10-23 21:18:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-10-23 21:18:01,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:01,016 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:01,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-23 21:18:01,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:01,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:01,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:01,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1766922043, now seen corresponding path program 1 times [2024-10-23 21:18:01,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:01,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002014826] [2024-10-23 21:18:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:01,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-23 21:18:01,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:01,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002014826] [2024-10-23 21:18:01,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002014826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:01,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:18:01,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:18:01,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780392036] [2024-10-23 21:18:01,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:01,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:18:01,435 INFO L87 Difference]: Start difference. First operand 2851 states and 3182 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:01,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:01,955 INFO L93 Difference]: Finished difference Result 3921 states and 4447 transitions. [2024-10-23 21:18:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:01,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2024-10-23 21:18:01,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:01,967 INFO L225 Difference]: With dead ends: 3921 [2024-10-23 21:18:01,967 INFO L226 Difference]: Without dead ends: 3919 [2024-10-23 21:18:01,969 INFO L431 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 [2024-10-23 21:18:01,969 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 126 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:01,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 16 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:18:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2024-10-23 21:18:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3207. [2024-10-23 21:18:02,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.1384903306300687) internal successors, (3650), 3206 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3650 transitions. [2024-10-23 21:18:02,023 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3650 transitions. Word has length 381 [2024-10-23 21:18:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:02,023 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 3650 transitions. [2024-10-23 21:18:02,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:02,024 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3650 transitions. [2024-10-23 21:18:02,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-10-23 21:18:02,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:02,027 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:02,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:18:02,027 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:02,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1857640466, now seen corresponding path program 1 times [2024-10-23 21:18:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:02,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796290415] [2024-10-23 21:18:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:02,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 432 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-10-23 21:18:02,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796290415] [2024-10-23 21:18:02,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796290415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:02,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:18:02,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:18:02,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892869206] [2024-10-23 21:18:02,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:02,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:18:02,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:18:02,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:18:02,442 INFO L87 Difference]: Start difference. First operand 3207 states and 3650 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:03,012 INFO L93 Difference]: Finished difference Result 6442 states and 7345 transitions. [2024-10-23 21:18:03,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:18:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 427 [2024-10-23 21:18:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:03,024 INFO L225 Difference]: With dead ends: 6442 [2024-10-23 21:18:03,024 INFO L226 Difference]: Without dead ends: 3385 [2024-10-23 21:18:03,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:18:03,029 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 141 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:03,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 14 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:18:03,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-10-23 21:18:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3207. [2024-10-23 21:18:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.0995009357454772) internal successors, (3525), 3206 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3525 transitions. [2024-10-23 21:18:03,080 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3525 transitions. Word has length 427 [2024-10-23 21:18:03,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:03,080 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 3525 transitions. [2024-10-23 21:18:03,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3525 transitions. [2024-10-23 21:18:03,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-10-23 21:18:03,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:03,085 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-10-23 21:18:03,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:18:03,086 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:03,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:03,086 INFO L85 PathProgramCache]: Analyzing trace with hash 601935279, now seen corresponding path program 2 times [2024-10-23 21:18:03,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:03,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389472526] [2024-10-23 21:18:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:03,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 473 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-10-23 21:18:03,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389472526] [2024-10-23 21:18:03,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389472526] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:18:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324762837] [2024-10-23 21:18:03,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-23 21:18:03,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:03,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:18:03,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:18:03,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-23 21:18:03,995 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-23 21:18:03,995 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-23 21:18:03,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-23 21:18:04,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:18:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-23 21:18:04,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:18:04,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324762837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:04,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:18:04,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-23 21:18:04,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782861221] [2024-10-23 21:18:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:18:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:18:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:18:04,638 INFO L87 Difference]: Start difference. First operand 3207 states and 3525 transitions. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:05,208 INFO L93 Difference]: Finished difference Result 7481 states and 8210 transitions. [2024-10-23 21:18:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:18:05,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 3 states have internal predecessors, (245), 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 453 [2024-10-23 21:18:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:05,221 INFO L225 Difference]: With dead ends: 7481 [2024-10-23 21:18:05,222 INFO L226 Difference]: Without dead ends: 4453 [2024-10-23 21:18:05,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:18:05,226 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 190 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:05,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 13 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:18:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4453 states. [2024-10-23 21:18:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4453 to 3207. [2024-10-23 21:18:05,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.0814098565190269) internal successors, (3467), 3206 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3467 transitions. [2024-10-23 21:18:05,303 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3467 transitions. Word has length 453 [2024-10-23 21:18:05,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:05,304 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 3467 transitions. [2024-10-23 21:18:05,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:05,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3467 transitions. [2024-10-23 21:18:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-10-23 21:18:05,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:05,308 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:05,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-23 21:18:05,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:05,509 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:05,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:05,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1600945022, now seen corresponding path program 1 times [2024-10-23 21:18:05,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:05,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172988723] [2024-10-23 21:18:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:05,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-23 21:18:05,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:05,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172988723] [2024-10-23 21:18:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172988723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:05,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:18:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:18:05,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078548886] [2024-10-23 21:18:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:05,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:05,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:18:05,869 INFO L87 Difference]: Start difference. First operand 3207 states and 3467 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:06,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:06,347 INFO L93 Difference]: Finished difference Result 6947 states and 7542 transitions. [2024-10-23 21:18:06,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:06,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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 460 [2024-10-23 21:18:06,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:06,361 INFO L225 Difference]: With dead ends: 6947 [2024-10-23 21:18:06,362 INFO L226 Difference]: Without dead ends: 3919 [2024-10-23 21:18:06,365 INFO L431 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 [2024-10-23 21:18:06,365 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:06,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 224 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:18:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2024-10-23 21:18:06,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3741. [2024-10-23 21:18:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.0751336898395722) internal successors, (4021), 3740 states have internal predecessors, (4021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:06,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4021 transitions. [2024-10-23 21:18:06,425 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4021 transitions. Word has length 460 [2024-10-23 21:18:06,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:06,426 INFO L471 AbstractCegarLoop]: Abstraction has 3741 states and 4021 transitions. [2024-10-23 21:18:06,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4021 transitions. [2024-10-23 21:18:06,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2024-10-23 21:18:06,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:06,437 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:06,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:18:06,437 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:06,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:06,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1716759247, now seen corresponding path program 1 times [2024-10-23 21:18:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:06,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276430140] [2024-10-23 21:18:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 473 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-10-23 21:18:07,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:07,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276430140] [2024-10-23 21:18:07,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276430140] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:18:07,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851983659] [2024-10-23 21:18:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:07,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:07,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:18:07,179 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:18:07,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-23 21:18:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:07,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-23 21:18:07,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:18:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-10-23 21:18:08,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:18:08,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851983659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:08,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:18:08,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-23 21:18:08,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688945970] [2024-10-23 21:18:08,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:08,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:08,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:18:08,660 INFO L87 Difference]: Start difference. First operand 3741 states and 4021 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:09,030 INFO L93 Difference]: Finished difference Result 7303 states and 7871 transitions. [2024-10-23 21:18:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:09,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 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 505 [2024-10-23 21:18:09,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:09,038 INFO L225 Difference]: With dead ends: 7303 [2024-10-23 21:18:09,038 INFO L226 Difference]: Without dead ends: 3919 [2024-10-23 21:18:09,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:18:09,042 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:09,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 21:18:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2024-10-23 21:18:09,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3919. [2024-10-23 21:18:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3918 states have (on average 1.065339458907606) internal successors, (4174), 3918 states have internal predecessors, (4174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 4174 transitions. [2024-10-23 21:18:09,098 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 4174 transitions. Word has length 505 [2024-10-23 21:18:09,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:09,098 INFO L471 AbstractCegarLoop]: Abstraction has 3919 states and 4174 transitions. [2024-10-23 21:18:09,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 4174 transitions. [2024-10-23 21:18:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2024-10-23 21:18:09,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:09,112 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 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, 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] [2024-10-23 21:18:09,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-23 21:18:09,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-23 21:18:09,313 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:09,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:09,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1938019861, now seen corresponding path program 1 times [2024-10-23 21:18:09,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:09,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856003544] [2024-10-23 21:18:09,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:09,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1231 backedges. 861 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-10-23 21:18:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856003544] [2024-10-23 21:18:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856003544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:09,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:18:09,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:18:09,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489265359] [2024-10-23 21:18:09,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:09,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:09,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:09,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:18:09,630 INFO L87 Difference]: Start difference. First operand 3919 states and 4174 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:10,116 INFO L93 Difference]: Finished difference Result 8549 states and 9172 transitions. [2024-10-23 21:18:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:10,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 635 [2024-10-23 21:18:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:10,125 INFO L225 Difference]: With dead ends: 8549 [2024-10-23 21:18:10,126 INFO L226 Difference]: Without dead ends: 4987 [2024-10-23 21:18:10,132 INFO L431 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 [2024-10-23 21:18:10,133 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:10,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 21:18:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2024-10-23 21:18:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4809. [2024-10-23 21:18:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4808 states have (on average 1.0630199667221298) internal successors, (5111), 4808 states have internal predecessors, (5111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 5111 transitions. [2024-10-23 21:18:10,197 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 5111 transitions. Word has length 635 [2024-10-23 21:18:10,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:10,197 INFO L471 AbstractCegarLoop]: Abstraction has 4809 states and 5111 transitions. [2024-10-23 21:18:10,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 5111 transitions. [2024-10-23 21:18:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2024-10-23 21:18:10,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:10,205 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:10,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:18:10,205 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:10,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1122599052, now seen corresponding path program 1 times [2024-10-23 21:18:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862846971] [2024-10-23 21:18:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 1311 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-10-23 21:18:10,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:10,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862846971] [2024-10-23 21:18:10,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862846971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:10,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:18:10,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:18:10,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476089340] [2024-10-23 21:18:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:10,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:18:10,830 INFO L87 Difference]: Start difference. First operand 4809 states and 5111 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:11,201 INFO L93 Difference]: Finished difference Result 9439 states and 10042 transitions. [2024-10-23 21:18:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:11,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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 760 [2024-10-23 21:18:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:11,210 INFO L225 Difference]: With dead ends: 9439 [2024-10-23 21:18:11,210 INFO L226 Difference]: Without dead ends: 4809 [2024-10-23 21:18:11,214 INFO L431 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 [2024-10-23 21:18:11,215 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:11,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 242 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 21:18:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4809 states. [2024-10-23 21:18:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4809 to 4275. [2024-10-23 21:18:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4274 states have (on average 1.066916237716425) internal successors, (4560), 4274 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 4560 transitions. [2024-10-23 21:18:11,260 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 4560 transitions. Word has length 760 [2024-10-23 21:18:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:11,261 INFO L471 AbstractCegarLoop]: Abstraction has 4275 states and 4560 transitions. [2024-10-23 21:18:11,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 4560 transitions. [2024-10-23 21:18:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-10-23 21:18:11,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:11,272 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:18:11,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:18:11,272 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:11,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1314668678, now seen corresponding path program 1 times [2024-10-23 21:18:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:11,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740480492] [2024-10-23 21:18:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:11,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-10-23 21:18:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:11,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740480492] [2024-10-23 21:18:11,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740480492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:18:11,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101687247] [2024-10-23 21:18:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:11,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:18:11,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:18:11,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-23 21:18:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:11,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:18:11,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:18:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1859 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2024-10-23 21:18:12,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:18:12,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101687247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:12,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:18:12,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-23 21:18:12,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863334903] [2024-10-23 21:18:12,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:12,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:12,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:12,004 INFO L87 Difference]: Start difference. First operand 4275 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:12,498 INFO L93 Difference]: Finished difference Result 6235 states and 6610 transitions. [2024-10-23 21:18:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:12,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 793 [2024-10-23 21:18:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:12,510 INFO L225 Difference]: With dead ends: 6235 [2024-10-23 21:18:12,510 INFO L226 Difference]: Without dead ends: 6233 [2024-10-23 21:18:12,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:12,514 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 143 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:12,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 9 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:18:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2024-10-23 21:18:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 4275. [2024-10-23 21:18:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4274 states have (on average 1.066916237716425) internal successors, (4560), 4274 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 4560 transitions. [2024-10-23 21:18:12,574 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 4560 transitions. Word has length 793 [2024-10-23 21:18:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:12,575 INFO L471 AbstractCegarLoop]: Abstraction has 4275 states and 4560 transitions. [2024-10-23 21:18:12,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 4560 transitions. [2024-10-23 21:18:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-10-23 21:18:12,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:18:12,584 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:18:12,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-23 21:18:12,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-23 21:18:12,786 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:18:12,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:18:12,786 INFO L85 PathProgramCache]: Analyzing trace with hash 648763885, now seen corresponding path program 1 times [2024-10-23 21:18:12,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:18:12,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820552973] [2024-10-23 21:18:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:18:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1424 proven. 155 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-10-23 21:18:13,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:18:13,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820552973] [2024-10-23 21:18:13,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820552973] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:18:13,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266067205] [2024-10-23 21:18:13,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:18:13,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:13,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:18:13,218 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:18:13,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-23 21:18:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:18:13,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:18:13,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:18:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2024-10-23 21:18:13,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:18:13,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266067205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:18:13,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:18:13,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-23 21:18:13,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024375054] [2024-10-23 21:18:13,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:18:13,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:18:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:18:13,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:18:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:13,509 INFO L87 Difference]: Start difference. First operand 4275 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:13,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:18:13,874 INFO L93 Difference]: Finished difference Result 9793 states and 10431 transitions. [2024-10-23 21:18:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:18:13,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 811 [2024-10-23 21:18:13,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:18:13,876 INFO L225 Difference]: With dead ends: 9793 [2024-10-23 21:18:13,876 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:18:13,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 811 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:18:13,883 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:18:13,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 241 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 21:18:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:18:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:18:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:18:13,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 811 [2024-10-23 21:18:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:18:13,885 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:18:13,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:18:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:18:13,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:18:13,888 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:18:13,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-23 21:18:14,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:18:14,092 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:18:14,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:18:14,718 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:18:14,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:18:14 BoogieIcfgContainer [2024-10-23 21:18:14,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:18:14,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:18:14,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:18:14,738 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:18:14,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:17:49" (3/4) ... [2024-10-23 21:18:14,741 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:18:14,758 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 21:18:14,759 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:18:14,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:18:14,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:18:14,943 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:18:14,944 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:18:14,944 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:18:14,945 INFO L158 Benchmark]: Toolchain (without parser) took 27741.12ms. Allocated memory was 144.7MB in the beginning and 597.7MB in the end (delta: 453.0MB). Free memory was 110.3MB in the beginning and 211.8MB in the end (delta: -101.5MB). Peak memory consumption was 350.3MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,945 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:18:14,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.02ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 75.6MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.38ms. Allocated memory is still 144.7MB. Free memory was 75.6MB in the beginning and 65.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,946 INFO L158 Benchmark]: Boogie Preprocessor took 134.09ms. Allocated memory is still 144.7MB. Free memory was 65.4MB in the beginning and 52.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,947 INFO L158 Benchmark]: RCFGBuilder took 1775.12ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 52.8MB in the beginning and 144.2MB in the end (delta: -91.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,947 INFO L158 Benchmark]: TraceAbstraction took 24847.40ms. Allocated memory was 186.6MB in the beginning and 597.7MB in the end (delta: 411.0MB). Free memory was 143.2MB in the beginning and 226.5MB in the end (delta: -83.3MB). Peak memory consumption was 327.7MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,947 INFO L158 Benchmark]: Witness Printer took 205.96ms. Allocated memory is still 597.7MB. Free memory was 226.5MB in the beginning and 211.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-23 21:18:14,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.02ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 75.6MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.38ms. Allocated memory is still 144.7MB. Free memory was 75.6MB in the beginning and 65.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.09ms. Allocated memory is still 144.7MB. Free memory was 65.4MB in the beginning and 52.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1775.12ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 52.8MB in the beginning and 144.2MB in the end (delta: -91.4MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * TraceAbstraction took 24847.40ms. Allocated memory was 186.6MB in the beginning and 597.7MB in the end (delta: 411.0MB). Free memory was 143.2MB in the beginning and 226.5MB in the end (delta: -83.3MB). Peak memory consumption was 327.7MB. Max. memory is 16.1GB. * Witness Printer took 205.96ms. Allocated memory is still 597.7MB. Free memory was 226.5MB in the beginning and 211.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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 - PositiveResult [Line: 188]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.1s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2114 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2114 mSDsluCounter, 1953 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 1079 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8663 IncrementalHoareTripleChecker+Invalid, 9742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1079 mSolverCounterUnsat, 1870 mSDtfsCounter, 8663 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3682 GetRequests, 3640 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4809occurred in iteration=15, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 5518 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 10866 NumberOfCodeBlocks, 10866 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 10841 ConstructedInterpolants, 0 QuantifiedInterpolants, 31608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4599 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 25 InterpolantComputations, 18 PerfectInterpolantSequences, 18002/19131 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((long long) a12 + 43) <= 0) && (a21 <= 7)) && (a15 <= 5)) || ((7 <= a15) && (a24 == 1))) || ((a21 <= 9) && (a24 == 1))) || ((a24 == 1) && (81 <= a12))) || ((a24 == 1) && (a15 <= 5))) || ((a12 <= 11) && (a24 == 1))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:18:14,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE