./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c4f91361 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 ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.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 4a068220cd9a63125e810935e79eeb0e481ecd288491865590be5286d46acb22 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 14:59:44,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 14:59:44,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 14:59:44,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 14:59:44,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 14:59:44,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 14:59:44,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 14:59:44,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 14:59:44,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 14:59:44,184 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 14:59:44,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 14:59:44,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 14:59:44,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 14:59:44,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 14:59:44,187 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 14:59:44,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 14:59:44,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 14:59:44,190 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 14:59:44,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 14:59:44,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 14:59:44,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 14:59:44,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 14:59:44,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 14:59:44,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 14:59:44,192 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 14:59:44,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 14:59:44,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 14:59:44,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 14:59:44,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 14:59:44,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 14:59:44,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 14:59:44,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 14:59:44,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 14:59:44,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 14:59:44,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 14:59:44,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 14:59:44,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 14:59:44,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a068220cd9a63125e810935e79eeb0e481ecd288491865590be5286d46acb22 [2023-11-23 14:59:44,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 14:59:44,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 14:59:44,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 14:59:44,461 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 14:59:44,461 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 14:59:44,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2023-11-23 14:59:45,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 14:59:45,754 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 14:59:45,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2023-11-23 14:59:45,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15a96d99e/3cfb25440ac143019e7cc44cd4828395/FLAGbcef3dc0f [2023-11-23 14:59:45,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15a96d99e/3cfb25440ac143019e7cc44cd4828395 [2023-11-23 14:59:45,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 14:59:45,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 14:59:45,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 14:59:45,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 14:59:45,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 14:59:45,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:45" (1/1) ... [2023-11-23 14:59:45,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1965e0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:45, skipping insertion in model container [2023-11-23 14:59:45,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:45" (1/1) ... [2023-11-23 14:59:45,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 14:59:46,033 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2023-11-23 14:59:46,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 14:59:46,076 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 14:59:46,105 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2023-11-23 14:59:46,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 14:59:46,131 INFO L206 MainTranslator]: Completed translation [2023-11-23 14:59:46,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46 WrapperNode [2023-11-23 14:59:46,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 14:59:46,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 14:59:46,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 14:59:46,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 14:59:46,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,201 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 624 [2023-11-23 14:59:46,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 14:59:46,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 14:59:46,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 14:59:46,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 14:59:46,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,238 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]. [2023-11-23 14:59:46,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 14:59:46,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 14:59:46,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 14:59:46,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 14:59:46,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (1/1) ... [2023-11-23 14:59:46,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 14:59:46,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 14:59:46,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 14:59:46,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 14:59:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 14:59:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 14:59:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 14:59:46,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 14:59:46,513 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 14:59:46,517 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 14:59:46,880 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 14:59:46,973 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 14:59:46,974 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 14:59:46,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:46 BoogieIcfgContainer [2023-11-23 14:59:46,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 14:59:46,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 14:59:46,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 14:59:46,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 14:59:46,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:59:45" (1/3) ... [2023-11-23 14:59:46,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f577103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:46, skipping insertion in model container [2023-11-23 14:59:46,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:46" (2/3) ... [2023-11-23 14:59:46,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f577103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:46, skipping insertion in model container [2023-11-23 14:59:46,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:46" (3/3) ... [2023-11-23 14:59:46,981 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2023-11-23 14:59:46,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 14:59:46,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 14:59:47,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 14:59:47,033 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@4d8994e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 14:59:47,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 14:59:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 131 states have (on average 1.786259541984733) internal successors, (234), 138 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 14:59:47,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:47,043 INFO L195 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] [2023-11-23 14:59:47,044 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:47,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:47,048 INFO L85 PathProgramCache]: Analyzing trace with hash -257930743, now seen corresponding path program 1 times [2023-11-23 14:59:47,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:47,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146833465] [2023-11-23 14:59:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:47,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:47,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:47,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146833465] [2023-11-23 14:59:47,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146833465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:47,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:47,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:47,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505241947] [2023-11-23 14:59:47,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:47,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:47,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,389 INFO L87 Difference]: Start difference. First operand has 139 states, 131 states have (on average 1.786259541984733) internal successors, (234), 138 states have internal predecessors, (234), 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 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:47,461 INFO L93 Difference]: Finished difference Result 300 states and 487 transitions. [2023-11-23 14:59:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:47,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2023-11-23 14:59:47,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:47,473 INFO L225 Difference]: With dead ends: 300 [2023-11-23 14:59:47,473 INFO L226 Difference]: Without dead ends: 199 [2023-11-23 14:59:47,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,477 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 130 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:47,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 404 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:47,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-23 14:59:47,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2023-11-23 14:59:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 1.530612244897959) internal successors, (300), 196 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 300 transitions. [2023-11-23 14:59:47,508 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 300 transitions. Word has length 56 [2023-11-23 14:59:47,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:47,508 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 300 transitions. [2023-11-23 14:59:47,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 300 transitions. [2023-11-23 14:59:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 14:59:47,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:47,510 INFO L195 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, 1] [2023-11-23 14:59:47,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 14:59:47,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:47,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:47,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1691975926, now seen corresponding path program 1 times [2023-11-23 14:59:47,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:47,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943339132] [2023-11-23 14:59:47,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:47,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:47,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:47,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943339132] [2023-11-23 14:59:47,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943339132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:47,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:47,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:47,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171706679] [2023-11-23 14:59:47,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:47,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:47,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,629 INFO L87 Difference]: Start difference. First operand 197 states and 300 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:47,657 INFO L93 Difference]: Finished difference Result 471 states and 732 transitions. [2023-11-23 14:59:47,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:47,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2023-11-23 14:59:47,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:47,659 INFO L225 Difference]: With dead ends: 471 [2023-11-23 14:59:47,660 INFO L226 Difference]: Without dead ends: 327 [2023-11-23 14:59:47,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,661 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 102 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:47,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 416 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-23 14:59:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-11-23 14:59:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.5432098765432098) internal successors, (500), 324 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 500 transitions. [2023-11-23 14:59:47,678 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 500 transitions. Word has length 58 [2023-11-23 14:59:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:47,678 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 500 transitions. [2023-11-23 14:59:47,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 500 transitions. [2023-11-23 14:59:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 14:59:47,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:47,680 INFO L195 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, 1, 1, 1] [2023-11-23 14:59:47,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 14:59:47,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:47,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash -62203140, now seen corresponding path program 1 times [2023-11-23 14:59:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:47,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781812654] [2023-11-23 14:59:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:47,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:47,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781812654] [2023-11-23 14:59:47,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781812654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:47,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:47,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:47,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890180872] [2023-11-23 14:59:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:47,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:47,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:47,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,795 INFO L87 Difference]: Start difference. First operand 325 states and 500 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:47,814 INFO L93 Difference]: Finished difference Result 598 states and 932 transitions. [2023-11-23 14:59:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:47,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-11-23 14:59:47,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:47,817 INFO L225 Difference]: With dead ends: 598 [2023-11-23 14:59:47,817 INFO L226 Difference]: Without dead ends: 454 [2023-11-23 14:59:47,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,823 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 103 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:47,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 418 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:47,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-23 14:59:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 452. [2023-11-23 14:59:47,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.5476718403547671) internal successors, (698), 451 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 698 transitions. [2023-11-23 14:59:47,835 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 698 transitions. Word has length 60 [2023-11-23 14:59:47,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:47,836 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 698 transitions. [2023-11-23 14:59:47,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 698 transitions. [2023-11-23 14:59:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 14:59:47,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:47,838 INFO L195 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, 1, 1, 1] [2023-11-23 14:59:47,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 14:59:47,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:47,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1225726807, now seen corresponding path program 1 times [2023-11-23 14:59:47,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425307] [2023-11-23 14:59:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:47,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425307] [2023-11-23 14:59:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:47,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:47,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740472877] [2023-11-23 14:59:47,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:47,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:47,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:47,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:47,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,897 INFO L87 Difference]: Start difference. First operand 452 states and 698 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:47,911 INFO L93 Difference]: Finished difference Result 1162 states and 1802 transitions. [2023-11-23 14:59:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:47,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-11-23 14:59:47,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:47,914 INFO L225 Difference]: With dead ends: 1162 [2023-11-23 14:59:47,914 INFO L226 Difference]: Without dead ends: 786 [2023-11-23 14:59:47,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:47,923 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 97 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:47,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 362 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-11-23 14:59:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2023-11-23 14:59:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.537675606641124) internal successors, (1204), 783 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1204 transitions. [2023-11-23 14:59:47,944 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1204 transitions. Word has length 60 [2023-11-23 14:59:47,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:47,946 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1204 transitions. [2023-11-23 14:59:47,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:47,946 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1204 transitions. [2023-11-23 14:59:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 14:59:47,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:47,949 INFO L195 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, 1, 1, 1, 1, 1] [2023-11-23 14:59:47,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 14:59:47,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:47,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:47,949 INFO L85 PathProgramCache]: Analyzing trace with hash -792993450, now seen corresponding path program 1 times [2023-11-23 14:59:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009740789] [2023-11-23 14:59:47,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:47,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:48,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:48,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009740789] [2023-11-23 14:59:48,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009740789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:48,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:48,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 14:59:48,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744001746] [2023-11-23 14:59:48,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:48,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:59:48,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:48,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:59:48,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:48,094 INFO L87 Difference]: Start difference. First operand 784 states and 1204 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:48,210 INFO L93 Difference]: Finished difference Result 3532 states and 5522 transitions. [2023-11-23 14:59:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 14:59:48,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2023-11-23 14:59:48,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:48,219 INFO L225 Difference]: With dead ends: 3532 [2023-11-23 14:59:48,219 INFO L226 Difference]: Without dead ends: 2808 [2023-11-23 14:59:48,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 14:59:48,223 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 825 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:48,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1222 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 14:59:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2023-11-23 14:59:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 1387. [2023-11-23 14:59:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 1.554834054834055) internal successors, (2155), 1386 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2155 transitions. [2023-11-23 14:59:48,254 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2155 transitions. Word has length 62 [2023-11-23 14:59:48,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:48,255 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 2155 transitions. [2023-11-23 14:59:48,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2155 transitions. [2023-11-23 14:59:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 14:59:48,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:48,257 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:48,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 14:59:48,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:48,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1124502626, now seen corresponding path program 1 times [2023-11-23 14:59:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004659632] [2023-11-23 14:59:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:48,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:48,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:48,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004659632] [2023-11-23 14:59:48,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004659632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:48,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 14:59:48,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001898593] [2023-11-23 14:59:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:48,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:59:48,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:59:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:48,388 INFO L87 Difference]: Start difference. First operand 1387 states and 2155 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:48,431 INFO L93 Difference]: Finished difference Result 4066 states and 6377 transitions. [2023-11-23 14:59:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 14:59:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2023-11-23 14:59:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:48,439 INFO L225 Difference]: With dead ends: 4066 [2023-11-23 14:59:48,441 INFO L226 Difference]: Without dead ends: 2757 [2023-11-23 14:59:48,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:48,444 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 355 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:48,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 594 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:48,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2023-11-23 14:59:48,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2055. [2023-11-23 14:59:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 2054 states have (on average 1.5550146056475171) internal successors, (3194), 2054 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 3194 transitions. [2023-11-23 14:59:48,479 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 3194 transitions. Word has length 63 [2023-11-23 14:59:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:48,483 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 3194 transitions. [2023-11-23 14:59:48,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 3194 transitions. [2023-11-23 14:59:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 14:59:48,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:48,485 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:48,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 14:59:48,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:48,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:48,486 INFO L85 PathProgramCache]: Analyzing trace with hash -808788401, now seen corresponding path program 1 times [2023-11-23 14:59:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275895675] [2023-11-23 14:59:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:48,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275895675] [2023-11-23 14:59:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275895675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:48,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151035644] [2023-11-23 14:59:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:48,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:48,550 INFO L87 Difference]: Start difference. First operand 2055 states and 3194 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:48,570 INFO L93 Difference]: Finished difference Result 3971 states and 6192 transitions. [2023-11-23 14:59:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:48,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-23 14:59:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:48,580 INFO L225 Difference]: With dead ends: 3971 [2023-11-23 14:59:48,580 INFO L226 Difference]: Without dead ends: 2868 [2023-11-23 14:59:48,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:48,586 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 98 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:48,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 400 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2023-11-23 14:59:48,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 2866. [2023-11-23 14:59:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2865 states have (on average 1.543455497382199) internal successors, (4422), 2865 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 4422 transitions. [2023-11-23 14:59:48,628 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 4422 transitions. Word has length 63 [2023-11-23 14:59:48,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:48,628 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 4422 transitions. [2023-11-23 14:59:48,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 4422 transitions. [2023-11-23 14:59:48,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 14:59:48,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:48,630 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:48,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 14:59:48,631 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:48,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1440634225, now seen corresponding path program 1 times [2023-11-23 14:59:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:48,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899447180] [2023-11-23 14:59:48,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:48,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:48,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:48,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899447180] [2023-11-23 14:59:48,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899447180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:48,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:48,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483082242] [2023-11-23 14:59:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:48,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:48,675 INFO L87 Difference]: Start difference. First operand 2866 states and 4422 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:48,700 INFO L93 Difference]: Finished difference Result 6148 states and 9504 transitions. [2023-11-23 14:59:48,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-23 14:59:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:48,710 INFO L225 Difference]: With dead ends: 6148 [2023-11-23 14:59:48,710 INFO L226 Difference]: Without dead ends: 4132 [2023-11-23 14:59:48,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:48,714 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 108 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:48,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 445 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4132 states. [2023-11-23 14:59:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4132 to 4130. [2023-11-23 14:59:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4130 states, 4129 states have (on average 1.5277306853959796) internal successors, (6308), 4129 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4130 states to 4130 states and 6308 transitions. [2023-11-23 14:59:48,775 INFO L78 Accepts]: Start accepts. Automaton has 4130 states and 6308 transitions. Word has length 63 [2023-11-23 14:59:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:48,775 INFO L495 AbstractCegarLoop]: Abstraction has 4130 states and 6308 transitions. [2023-11-23 14:59:48,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 4130 states and 6308 transitions. [2023-11-23 14:59:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 14:59:48,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:48,779 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:48,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 14:59:48,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:48,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:48,780 INFO L85 PathProgramCache]: Analyzing trace with hash 434025879, now seen corresponding path program 1 times [2023-11-23 14:59:48,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:48,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106739451] [2023-11-23 14:59:48,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:48,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:48,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:48,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106739451] [2023-11-23 14:59:48,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106739451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:48,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:48,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 14:59:48,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926168311] [2023-11-23 14:59:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:48,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:59:48,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:48,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:59:48,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:48,990 INFO L87 Difference]: Start difference. First operand 4130 states and 6308 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:49,044 INFO L93 Difference]: Finished difference Result 6928 states and 10497 transitions. [2023-11-23 14:59:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 14:59:49,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2023-11-23 14:59:49,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:49,064 INFO L225 Difference]: With dead ends: 6928 [2023-11-23 14:59:49,065 INFO L226 Difference]: Without dead ends: 6926 [2023-11-23 14:59:49,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 14:59:49,069 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 226 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:49,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 912 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:49,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2023-11-23 14:59:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 4234. [2023-11-23 14:59:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4233 states have (on average 1.5083864871249704) internal successors, (6385), 4233 states have internal predecessors, (6385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6385 transitions. [2023-11-23 14:59:49,159 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6385 transitions. Word has length 71 [2023-11-23 14:59:49,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:49,159 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 6385 transitions. [2023-11-23 14:59:49,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6385 transitions. [2023-11-23 14:59:49,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 14:59:49,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:49,161 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:49,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 14:59:49,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:49,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:49,161 INFO L85 PathProgramCache]: Analyzing trace with hash 575576521, now seen corresponding path program 1 times [2023-11-23 14:59:49,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:49,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137378432] [2023-11-23 14:59:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:49,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 14:59:49,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:49,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137378432] [2023-11-23 14:59:49,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137378432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:49,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:49,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 14:59:49,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794346606] [2023-11-23 14:59:49,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:49,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:59:49,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:49,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:59:49,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:49,297 INFO L87 Difference]: Start difference. First operand 4234 states and 6385 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:49,371 INFO L93 Difference]: Finished difference Result 12261 states and 18532 transitions. [2023-11-23 14:59:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:59:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 92 [2023-11-23 14:59:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:49,403 INFO L225 Difference]: With dead ends: 12261 [2023-11-23 14:59:49,403 INFO L226 Difference]: Without dead ends: 9443 [2023-11-23 14:59:49,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 14:59:49,411 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 448 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:49,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 844 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:49,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9443 states. [2023-11-23 14:59:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9443 to 6811. [2023-11-23 14:59:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6811 states, 6810 states have (on average 1.505726872246696) internal successors, (10254), 6810 states have internal predecessors, (10254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6811 states to 6811 states and 10254 transitions. [2023-11-23 14:59:49,529 INFO L78 Accepts]: Start accepts. Automaton has 6811 states and 10254 transitions. Word has length 92 [2023-11-23 14:59:49,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:49,530 INFO L495 AbstractCegarLoop]: Abstraction has 6811 states and 10254 transitions. [2023-11-23 14:59:49,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6811 states and 10254 transitions. [2023-11-23 14:59:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 14:59:49,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:49,532 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:49,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 14:59:49,532 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:49,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1946475532, now seen corresponding path program 1 times [2023-11-23 14:59:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:49,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210421124] [2023-11-23 14:59:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:49,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 14:59:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210421124] [2023-11-23 14:59:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210421124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:49,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 14:59:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324606540] [2023-11-23 14:59:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:59:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:59:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:49,649 INFO L87 Difference]: Start difference. First operand 6811 states and 10254 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:49,733 INFO L93 Difference]: Finished difference Result 13808 states and 20860 transitions. [2023-11-23 14:59:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:59:49,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 92 [2023-11-23 14:59:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:49,750 INFO L225 Difference]: With dead ends: 13808 [2023-11-23 14:59:49,751 INFO L226 Difference]: Without dead ends: 10990 [2023-11-23 14:59:49,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 14:59:49,758 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 447 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:49,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 844 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:49,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10990 states. [2023-11-23 14:59:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10990 to 10215. [2023-11-23 14:59:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10215 states, 10214 states have (on average 1.5042099079694538) internal successors, (15364), 10214 states have internal predecessors, (15364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10215 states to 10215 states and 15364 transitions. [2023-11-23 14:59:49,910 INFO L78 Accepts]: Start accepts. Automaton has 10215 states and 15364 transitions. Word has length 92 [2023-11-23 14:59:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:49,910 INFO L495 AbstractCegarLoop]: Abstraction has 10215 states and 15364 transitions. [2023-11-23 14:59:49,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 10215 states and 15364 transitions. [2023-11-23 14:59:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 14:59:49,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:49,912 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:49,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 14:59:49,913 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:49,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:49,915 INFO L85 PathProgramCache]: Analyzing trace with hash 621891858, now seen corresponding path program 1 times [2023-11-23 14:59:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640521288] [2023-11-23 14:59:49,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:49,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 14:59:50,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:50,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640521288] [2023-11-23 14:59:50,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640521288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:50,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 14:59:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262584030] [2023-11-23 14:59:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:50,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 14:59:50,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:50,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 14:59:50,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:50,039 INFO L87 Difference]: Start difference. First operand 10215 states and 15364 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:50,109 INFO L93 Difference]: Finished difference Result 14313 states and 21642 transitions. [2023-11-23 14:59:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:59:50,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 92 [2023-11-23 14:59:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:50,127 INFO L225 Difference]: With dead ends: 14313 [2023-11-23 14:59:50,127 INFO L226 Difference]: Without dead ends: 12541 [2023-11-23 14:59:50,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 14:59:50,134 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 444 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:50,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 958 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2023-11-23 14:59:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 11775. [2023-11-23 14:59:50,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11775 states, 11774 states have (on average 1.50653983353151) internal successors, (17738), 11774 states have internal predecessors, (17738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11775 states to 11775 states and 17738 transitions. [2023-11-23 14:59:50,262 INFO L78 Accepts]: Start accepts. Automaton has 11775 states and 17738 transitions. Word has length 92 [2023-11-23 14:59:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:50,263 INFO L495 AbstractCegarLoop]: Abstraction has 11775 states and 17738 transitions. [2023-11-23 14:59:50,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11775 states and 17738 transitions. [2023-11-23 14:59:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:50,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:50,264 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:50,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 14:59:50,265 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:50,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:50,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1332792260, now seen corresponding path program 1 times [2023-11-23 14:59:50,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:50,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32653323] [2023-11-23 14:59:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:50,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:50,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:50,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32653323] [2023-11-23 14:59:50,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32653323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:50,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:50,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:50,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014436446] [2023-11-23 14:59:50,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:50,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:50,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:50,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:50,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:50,367 INFO L87 Difference]: Start difference. First operand 11775 states and 17738 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:50,412 INFO L93 Difference]: Finished difference Result 22117 states and 33402 transitions. [2023-11-23 14:59:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:50,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-11-23 14:59:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:50,426 INFO L225 Difference]: With dead ends: 22117 [2023-11-23 14:59:50,426 INFO L226 Difference]: Without dead ends: 10423 [2023-11-23 14:59:50,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:50,439 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 79 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:50,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 407 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2023-11-23 14:59:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 10415. [2023-11-23 14:59:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10415 states, 10414 states have (on average 1.5036489341271366) internal successors, (15659), 10414 states have internal predecessors, (15659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10415 states to 10415 states and 15659 transitions. [2023-11-23 14:59:50,548 INFO L78 Accepts]: Start accepts. Automaton has 10415 states and 15659 transitions. Word has length 93 [2023-11-23 14:59:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:50,548 INFO L495 AbstractCegarLoop]: Abstraction has 10415 states and 15659 transitions. [2023-11-23 14:59:50,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 10415 states and 15659 transitions. [2023-11-23 14:59:50,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:50,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:50,550 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:50,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 14:59:50,550 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:50,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:50,551 INFO L85 PathProgramCache]: Analyzing trace with hash -336919691, now seen corresponding path program 1 times [2023-11-23 14:59:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:50,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101064138] [2023-11-23 14:59:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 14:59:50,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:50,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101064138] [2023-11-23 14:59:50,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101064138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:50,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:50,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 14:59:50,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676895402] [2023-11-23 14:59:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:59:50,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:59:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:50,827 INFO L87 Difference]: Start difference. First operand 10415 states and 15659 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:50,906 INFO L93 Difference]: Finished difference Result 29522 states and 44374 transitions. [2023-11-23 14:59:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:59:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 93 [2023-11-23 14:59:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:50,937 INFO L225 Difference]: With dead ends: 29522 [2023-11-23 14:59:50,937 INFO L226 Difference]: Without dead ends: 21594 [2023-11-23 14:59:50,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:50,953 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 374 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:50,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 511 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21594 states. [2023-11-23 14:59:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21594 to 18257. [2023-11-23 14:59:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18257 states, 18256 states have (on average 1.4997261174408414) internal successors, (27379), 18256 states have internal predecessors, (27379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18257 states to 18257 states and 27379 transitions. [2023-11-23 14:59:51,237 INFO L78 Accepts]: Start accepts. Automaton has 18257 states and 27379 transitions. Word has length 93 [2023-11-23 14:59:51,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:51,238 INFO L495 AbstractCegarLoop]: Abstraction has 18257 states and 27379 transitions. [2023-11-23 14:59:51,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 18257 states and 27379 transitions. [2023-11-23 14:59:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:51,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:51,239 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:51,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 14:59:51,240 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:51,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:51,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1876289132, now seen corresponding path program 1 times [2023-11-23 14:59:51,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:51,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666186647] [2023-11-23 14:59:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:51,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 14:59:51,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:51,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666186647] [2023-11-23 14:59:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666186647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:51,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:51,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808959478] [2023-11-23 14:59:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:51,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:51,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:51,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:51,294 INFO L87 Difference]: Start difference. First operand 18257 states and 27379 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:51,389 INFO L93 Difference]: Finished difference Result 42099 states and 63245 transitions. [2023-11-23 14:59:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 93 [2023-11-23 14:59:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:51,435 INFO L225 Difference]: With dead ends: 42099 [2023-11-23 14:59:51,436 INFO L226 Difference]: Without dead ends: 30792 [2023-11-23 14:59:51,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:51,457 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 88 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:51,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 349 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:51,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30792 states. [2023-11-23 14:59:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30792 to 30702. [2023-11-23 14:59:51,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30702 states, 30701 states have (on average 1.4973453633432137) internal successors, (45970), 30701 states have internal predecessors, (45970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30702 states to 30702 states and 45970 transitions. [2023-11-23 14:59:52,050 INFO L78 Accepts]: Start accepts. Automaton has 30702 states and 45970 transitions. Word has length 93 [2023-11-23 14:59:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:52,050 INFO L495 AbstractCegarLoop]: Abstraction has 30702 states and 45970 transitions. [2023-11-23 14:59:52,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 30702 states and 45970 transitions. [2023-11-23 14:59:52,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:52,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:52,052 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:52,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 14:59:52,053 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:52,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:52,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1267915824, now seen corresponding path program 1 times [2023-11-23 14:59:52,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:52,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371859546] [2023-11-23 14:59:52,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:52,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:52,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:52,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371859546] [2023-11-23 14:59:52,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371859546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:52,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:52,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005600997] [2023-11-23 14:59:52,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:52,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:52,141 INFO L87 Difference]: Start difference. First operand 30702 states and 45970 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:52,255 INFO L93 Difference]: Finished difference Result 44091 states and 66062 transitions. [2023-11-23 14:59:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:52,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-11-23 14:59:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:52,277 INFO L225 Difference]: With dead ends: 44091 [2023-11-23 14:59:52,277 INFO L226 Difference]: Without dead ends: 13491 [2023-11-23 14:59:52,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:52,405 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:52,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 385 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:52,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13491 states. [2023-11-23 14:59:52,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13491 to 13373. [2023-11-23 14:59:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13373 states, 13372 states have (on average 1.4880346993718216) internal successors, (19898), 13372 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13373 states to 13373 states and 19898 transitions. [2023-11-23 14:59:52,544 INFO L78 Accepts]: Start accepts. Automaton has 13373 states and 19898 transitions. Word has length 93 [2023-11-23 14:59:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:52,544 INFO L495 AbstractCegarLoop]: Abstraction has 13373 states and 19898 transitions. [2023-11-23 14:59:52,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 13373 states and 19898 transitions. [2023-11-23 14:59:52,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:52,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:52,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:52,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 14:59:52,546 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:52,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:52,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1178389553, now seen corresponding path program 1 times [2023-11-23 14:59:52,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:52,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392207420] [2023-11-23 14:59:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:52,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 14:59:52,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:52,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392207420] [2023-11-23 14:59:52,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392207420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:52,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:52,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 14:59:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224197317] [2023-11-23 14:59:52,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:52,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:59:52,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:52,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:59:52,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:52,858 INFO L87 Difference]: Start difference. First operand 13373 states and 19898 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:53,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:53,024 INFO L93 Difference]: Finished difference Result 37336 states and 55520 transitions. [2023-11-23 14:59:53,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 14:59:53,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 93 [2023-11-23 14:59:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:53,062 INFO L225 Difference]: With dead ends: 37336 [2023-11-23 14:59:53,063 INFO L226 Difference]: Without dead ends: 27384 [2023-11-23 14:59:53,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 14:59:53,069 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 357 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:53,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 537 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27384 states. [2023-11-23 14:59:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27384 to 23215. [2023-11-23 14:59:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23215 states, 23214 states have (on average 1.4839321099336606) internal successors, (34448), 23214 states have internal predecessors, (34448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23215 states to 23215 states and 34448 transitions. [2023-11-23 14:59:53,352 INFO L78 Accepts]: Start accepts. Automaton has 23215 states and 34448 transitions. Word has length 93 [2023-11-23 14:59:53,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:53,352 INFO L495 AbstractCegarLoop]: Abstraction has 23215 states and 34448 transitions. [2023-11-23 14:59:53,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 23215 states and 34448 transitions. [2023-11-23 14:59:53,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 14:59:53,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:53,354 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:53,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 14:59:53,354 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:53,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash 562329573, now seen corresponding path program 1 times [2023-11-23 14:59:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742238830] [2023-11-23 14:59:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 14:59:53,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:53,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742238830] [2023-11-23 14:59:53,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742238830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:53,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:53,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 14:59:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856400788] [2023-11-23 14:59:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:53,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:59:53,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:59:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:53,456 INFO L87 Difference]: Start difference. First operand 23215 states and 34448 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:53,546 INFO L93 Difference]: Finished difference Result 38239 states and 56963 transitions. [2023-11-23 14:59:53,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 14:59:53,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 93 [2023-11-23 14:59:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:53,586 INFO L225 Difference]: With dead ends: 38239 [2023-11-23 14:59:53,586 INFO L226 Difference]: Without dead ends: 30649 [2023-11-23 14:59:53,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:53,601 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 201 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:53,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 620 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30649 states. [2023-11-23 14:59:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30649 to 27697. [2023-11-23 14:59:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27697 states, 27696 states have (on average 1.4826689774696706) internal successors, (41064), 27696 states have internal predecessors, (41064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:54,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27697 states to 27697 states and 41064 transitions. [2023-11-23 14:59:54,136 INFO L78 Accepts]: Start accepts. Automaton has 27697 states and 41064 transitions. Word has length 93 [2023-11-23 14:59:54,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:54,136 INFO L495 AbstractCegarLoop]: Abstraction has 27697 states and 41064 transitions. [2023-11-23 14:59:54,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:54,137 INFO L276 IsEmpty]: Start isEmpty. Operand 27697 states and 41064 transitions. [2023-11-23 14:59:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 14:59:54,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:54,138 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:54,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 14:59:54,138 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:54,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1284766273, now seen corresponding path program 1 times [2023-11-23 14:59:54,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:54,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781794681] [2023-11-23 14:59:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:54,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:54,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:54,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781794681] [2023-11-23 14:59:54,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781794681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:54,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:54,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:54,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539065904] [2023-11-23 14:59:54,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:54,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:54,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:54,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:54,184 INFO L87 Difference]: Start difference. First operand 27697 states and 41064 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:54,476 INFO L93 Difference]: Finished difference Result 81502 states and 120667 transitions. [2023-11-23 14:59:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-11-23 14:59:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:54,553 INFO L225 Difference]: With dead ends: 81502 [2023-11-23 14:59:54,554 INFO L226 Difference]: Without dead ends: 53888 [2023-11-23 14:59:54,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:54,581 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 145 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:54,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 472 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53888 states. [2023-11-23 14:59:55,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53888 to 53886. [2023-11-23 14:59:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53886 states, 53885 states have (on average 1.4682935881970864) internal successors, (79119), 53885 states have internal predecessors, (79119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53886 states to 53886 states and 79119 transitions. [2023-11-23 14:59:55,457 INFO L78 Accepts]: Start accepts. Automaton has 53886 states and 79119 transitions. Word has length 94 [2023-11-23 14:59:55,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:55,457 INFO L495 AbstractCegarLoop]: Abstraction has 53886 states and 79119 transitions. [2023-11-23 14:59:55,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand 53886 states and 79119 transitions. [2023-11-23 14:59:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 14:59:55,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:55,459 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:55,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 14:59:55,459 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:55,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:55,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2101317173, now seen corresponding path program 1 times [2023-11-23 14:59:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:55,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585849798] [2023-11-23 14:59:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:55,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 14:59:55,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585849798] [2023-11-23 14:59:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585849798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:55,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 14:59:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514968195] [2023-11-23 14:59:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:55,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 14:59:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:55,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 14:59:55,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:55,516 INFO L87 Difference]: Start difference. First operand 53886 states and 79119 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:55,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:55,853 INFO L93 Difference]: Finished difference Result 158114 states and 231759 transitions. [2023-11-23 14:59:55,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 14:59:55,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-11-23 14:59:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:56,012 INFO L225 Difference]: With dead ends: 158114 [2023-11-23 14:59:56,012 INFO L226 Difference]: Without dead ends: 104356 [2023-11-23 14:59:56,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 14:59:56,075 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 127 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:56,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 439 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:56,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104356 states. [2023-11-23 14:59:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104356 to 104354. [2023-11-23 14:59:57,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104354 states, 104353 states have (on average 1.4519371747817504) internal successors, (151514), 104353 states have internal predecessors, (151514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:57,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104354 states to 104354 states and 151514 transitions. [2023-11-23 14:59:57,668 INFO L78 Accepts]: Start accepts. Automaton has 104354 states and 151514 transitions. Word has length 94 [2023-11-23 14:59:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 14:59:57,669 INFO L495 AbstractCegarLoop]: Abstraction has 104354 states and 151514 transitions. [2023-11-23 14:59:57,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 104354 states and 151514 transitions. [2023-11-23 14:59:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 14:59:57,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 14:59:57,671 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 14:59:57,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 14:59:57,671 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 14:59:57,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 14:59:57,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1310281361, now seen corresponding path program 1 times [2023-11-23 14:59:57,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 14:59:57,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769967795] [2023-11-23 14:59:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 14:59:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 14:59:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 14:59:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 14:59:58,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 14:59:58,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769967795] [2023-11-23 14:59:58,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769967795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 14:59:58,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 14:59:58,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 14:59:58,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342236136] [2023-11-23 14:59:58,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 14:59:58,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 14:59:58,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 14:59:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 14:59:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:58,082 INFO L87 Difference]: Start difference. First operand 104354 states and 151514 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 14:59:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 14:59:58,482 INFO L93 Difference]: Finished difference Result 165428 states and 241045 transitions. [2023-11-23 14:59:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 14:59:58,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 97 [2023-11-23 14:59:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 14:59:58,671 INFO L225 Difference]: With dead ends: 165428 [2023-11-23 14:59:58,672 INFO L226 Difference]: Without dead ends: 120342 [2023-11-23 14:59:58,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 14:59:58,731 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 192 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 14:59:58,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 674 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 14:59:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120342 states. [2023-11-23 15:00:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120342 to 118962. [2023-11-23 15:00:00,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118962 states, 118961 states have (on average 1.4497020031775119) internal successors, (172458), 118961 states have internal predecessors, (172458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118962 states to 118962 states and 172458 transitions. [2023-11-23 15:00:00,550 INFO L78 Accepts]: Start accepts. Automaton has 118962 states and 172458 transitions. Word has length 97 [2023-11-23 15:00:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:00,551 INFO L495 AbstractCegarLoop]: Abstraction has 118962 states and 172458 transitions. [2023-11-23 15:00:00,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 118962 states and 172458 transitions. [2023-11-23 15:00:00,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 15:00:00,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 15:00:00,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:00:00,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 15:00:00,580 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 15:00:00,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:00:00,580 INFO L85 PathProgramCache]: Analyzing trace with hash -178925965, now seen corresponding path program 1 times [2023-11-23 15:00:00,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:00:00,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355260704] [2023-11-23 15:00:00,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:00:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-23 15:00:00,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:00:00,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355260704] [2023-11-23 15:00:00,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355260704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:00:00,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:00:00,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 15:00:00,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369823394] [2023-11-23 15:00:00,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:00:00,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:00:00,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:00:00,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:00:00,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:00:00,621 INFO L87 Difference]: Start difference. First operand 118962 states and 172458 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 15:00:01,781 INFO L93 Difference]: Finished difference Result 248086 states and 359036 transitions. [2023-11-23 15:00:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:00:01,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 139 [2023-11-23 15:00:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 15:00:02,000 INFO L225 Difference]: With dead ends: 248086 [2023-11-23 15:00:02,000 INFO L226 Difference]: Without dead ends: 105754 [2023-11-23 15:00:02,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:00:02,084 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 69 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 15:00:02,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 438 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 15:00:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105754 states. [2023-11-23 15:00:03,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105754 to 91436. [2023-11-23 15:00:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91436 states, 91435 states have (on average 1.421381309126702) internal successors, (129964), 91435 states have internal predecessors, (129964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91436 states to 91436 states and 129964 transitions. [2023-11-23 15:00:03,290 INFO L78 Accepts]: Start accepts. Automaton has 91436 states and 129964 transitions. Word has length 139 [2023-11-23 15:00:03,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:03,291 INFO L495 AbstractCegarLoop]: Abstraction has 91436 states and 129964 transitions. [2023-11-23 15:00:03,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:03,291 INFO L276 IsEmpty]: Start isEmpty. Operand 91436 states and 129964 transitions. [2023-11-23 15:00:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 15:00:03,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 15:00:03,298 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:00:03,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 15:00:03,299 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 15:00:03,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:00:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash -16044634, now seen corresponding path program 1 times [2023-11-23 15:00:03,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:00:03,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960546421] [2023-11-23 15:00:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:00:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-23 15:00:03,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:00:03,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960546421] [2023-11-23 15:00:03,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960546421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:00:03,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:00:03,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 15:00:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560632588] [2023-11-23 15:00:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:00:03,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 15:00:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:00:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 15:00:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:00:03,386 INFO L87 Difference]: Start difference. First operand 91436 states and 129964 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:04,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 15:00:04,056 INFO L93 Difference]: Finished difference Result 130357 states and 185235 transitions. [2023-11-23 15:00:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 15:00:04,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 145 [2023-11-23 15:00:04,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 15:00:04,114 INFO L225 Difference]: With dead ends: 130357 [2023-11-23 15:00:04,114 INFO L226 Difference]: Without dead ends: 39189 [2023-11-23 15:00:04,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 15:00:04,169 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 42 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 15:00:04,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 333 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 15:00:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39189 states. [2023-11-23 15:00:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39189 to 39034. [2023-11-23 15:00:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39034 states, 39033 states have (on average 1.4086542156636692) internal successors, (54984), 39033 states have internal predecessors, (54984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:04,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39034 states to 39034 states and 54984 transitions. [2023-11-23 15:00:04,657 INFO L78 Accepts]: Start accepts. Automaton has 39034 states and 54984 transitions. Word has length 145 [2023-11-23 15:00:04,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:04,657 INFO L495 AbstractCegarLoop]: Abstraction has 39034 states and 54984 transitions. [2023-11-23 15:00:04,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 39034 states and 54984 transitions. [2023-11-23 15:00:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-23 15:00:04,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 15:00:04,662 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:00:04,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 15:00:04,662 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 15:00:04,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:00:04,663 INFO L85 PathProgramCache]: Analyzing trace with hash 461261378, now seen corresponding path program 1 times [2023-11-23 15:00:04,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:00:04,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299921920] [2023-11-23 15:00:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:00:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 59 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 15:00:04,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:00:04,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299921920] [2023-11-23 15:00:04,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299921920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 15:00:04,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915855207] [2023-11-23 15:00:04,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:04,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 15:00:04,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 15:00:04,834 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) [2023-11-23 15:00:04,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 15:00:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:05,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 15:00:05,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 15:00:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 68 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-23 15:00:05,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 15:00:06,296 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 59 proven. 30 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 15:00:06,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915855207] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 15:00:06,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 15:00:06,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 15 [2023-11-23 15:00:06,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143584944] [2023-11-23 15:00:06,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 15:00:06,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 15:00:06,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:00:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 15:00:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-23 15:00:06,299 INFO L87 Difference]: Start difference. First operand 39034 states and 54984 transitions. Second operand has 15 states, 15 states have (on average 19.866666666666667) internal successors, (298), 15 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 15:00:06,953 INFO L93 Difference]: Finished difference Result 122338 states and 171808 transitions. [2023-11-23 15:00:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 15:00:06,954 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 19.866666666666667) internal successors, (298), 15 states have internal predecessors, (298), 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 147 [2023-11-23 15:00:06,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 15:00:07,055 INFO L225 Difference]: With dead ends: 122338 [2023-11-23 15:00:07,056 INFO L226 Difference]: Without dead ends: 83278 [2023-11-23 15:00:07,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=373, Invalid=887, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 15:00:07,100 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 2469 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 15:00:07,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 1916 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 15:00:07,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83278 states. [2023-11-23 15:00:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83278 to 28599. [2023-11-23 15:00:07,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28599 states, 28598 states have (on average 1.411846982306455) internal successors, (40376), 28598 states have internal predecessors, (40376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28599 states to 28599 states and 40376 transitions. [2023-11-23 15:00:07,836 INFO L78 Accepts]: Start accepts. Automaton has 28599 states and 40376 transitions. Word has length 147 [2023-11-23 15:00:07,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:07,836 INFO L495 AbstractCegarLoop]: Abstraction has 28599 states and 40376 transitions. [2023-11-23 15:00:07,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.866666666666667) internal successors, (298), 15 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 28599 states and 40376 transitions. [2023-11-23 15:00:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 15:00:07,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 15:00:07,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:00:07,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 15:00:08,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-23 15:00:08,055 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 15:00:08,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:00:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash 352241585, now seen corresponding path program 1 times [2023-11-23 15:00:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:00:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37247132] [2023-11-23 15:00:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:00:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:08,159 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 15:00:08,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:00:08,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37247132] [2023-11-23 15:00:08,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37247132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:00:08,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:00:08,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 15:00:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590112282] [2023-11-23 15:00:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:00:08,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 15:00:08,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:00:08,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 15:00:08,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 15:00:08,161 INFO L87 Difference]: Start difference. First operand 28599 states and 40376 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 15:00:08,300 INFO L93 Difference]: Finished difference Result 51437 states and 73675 transitions. [2023-11-23 15:00:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 15:00:08,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 149 [2023-11-23 15:00:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 15:00:08,335 INFO L225 Difference]: With dead ends: 51437 [2023-11-23 15:00:08,336 INFO L226 Difference]: Without dead ends: 30435 [2023-11-23 15:00:08,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 15:00:08,354 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 461 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 15:00:08,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 622 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 15:00:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30435 states. [2023-11-23 15:00:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30435 to 28751. [2023-11-23 15:00:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28751 states, 28750 states have (on average 1.4427826086956521) internal successors, (41480), 28750 states have internal predecessors, (41480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:08,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28751 states to 28751 states and 41480 transitions. [2023-11-23 15:00:08,645 INFO L78 Accepts]: Start accepts. Automaton has 28751 states and 41480 transitions. Word has length 149 [2023-11-23 15:00:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:08,647 INFO L495 AbstractCegarLoop]: Abstraction has 28751 states and 41480 transitions. [2023-11-23 15:00:08,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 28751 states and 41480 transitions. [2023-11-23 15:00:08,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-23 15:00:08,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 15:00:08,649 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 15:00:08,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-23 15:00:08,650 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 15:00:08,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 15:00:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash -28650903, now seen corresponding path program 1 times [2023-11-23 15:00:08,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 15:00:08,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179366814] [2023-11-23 15:00:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 15:00:08,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 15:00:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 15:00:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 15:00:08,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 15:00:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179366814] [2023-11-23 15:00:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179366814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 15:00:08,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 15:00:08,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 15:00:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726894272] [2023-11-23 15:00:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 15:00:08,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 15:00:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 15:00:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 15:00:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 15:00:08,901 INFO L87 Difference]: Start difference. First operand 28751 states and 41480 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 15:00:08,970 INFO L93 Difference]: Finished difference Result 28751 states and 41480 transitions. [2023-11-23 15:00:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 15:00:08,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 154 [2023-11-23 15:00:08,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 15:00:08,971 INFO L225 Difference]: With dead ends: 28751 [2023-11-23 15:00:08,971 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 15:00:08,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 15:00:08,985 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 178 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 15:00:08,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 387 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 15:00:08,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 15:00:08,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 15:00:08,986 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) [2023-11-23 15:00:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 15:00:08,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2023-11-23 15:00:08,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 15:00:08,987 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 15:00:08,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 15:00:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 15:00:08,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 15:00:08,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 15:00:08,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-23 15:00:08,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 440) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 835) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L631(lines 618 639) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 915) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L269(lines 264 679) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 830) no Hoare annotation was computed. [2023-11-23 15:00:08,995 INFO L899 garLoopResultBuilder]: For program point L732(lines 719 740) no Hoare annotation was computed. [2023-11-23 15:00:08,996 INFO L899 garLoopResultBuilder]: For program point L501(lines 501 565) no Hoare annotation was computed. [2023-11-23 15:00:08,996 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 910) no Hoare annotation was computed. [2023-11-23 15:00:08,996 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 497) no Hoare annotation was computed. [2023-11-23 15:00:08,996 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 825) no Hoare annotation was computed. [2023-11-23 15:00:08,997 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 1053) no Hoare annotation was computed. [2023-11-23 15:00:08,997 INFO L899 garLoopResultBuilder]: For program point L965(lines 965 983) no Hoare annotation was computed. [2023-11-23 15:00:08,997 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 666) no Hoare annotation was computed. [2023-11-23 15:00:08,997 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 560) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 905) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 820) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L967(lines 967 977) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 767) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 661) no Hoare annotation was computed. [2023-11-23 15:00:08,998 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 414) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 900) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L142(lines 139 1053) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L1034(lines 1034 1052) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 555) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 492) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L209(lines 209 815) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 81 1055) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 762) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 465) no Hoare annotation was computed. [2023-11-23 15:00:08,999 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 598) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 895) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 1030) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L1036(lines 1036 1046) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 656) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 550) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 810) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 387) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 459) no Hoare annotation was computed. [2023-11-23 15:00:09,000 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 768) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 890) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 757) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 651) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 805) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L147(lines 144 1030) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L511(lines 508 550) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 453) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 593) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 885) no Hoare annotation was computed. [2023-11-23 15:00:09,001 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 752) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 699) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 800) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 1007) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 960) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L612(lines 609 651) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 447) no Hoare annotation was computed. [2023-11-23 15:00:09,002 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 880) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L547(lines 506 555) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 482) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 795) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L944(lines 944 954) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L713(lines 710 752) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 441) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 875) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L152(lines 149 1007) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L1011(lines 1011 1029) no Hoare annotation was computed. [2023-11-23 15:00:09,003 INFO L899 garLoopResultBuilder]: For program point L648(lines 607 656) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point L252(lines 252 694) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point L219(lines 219 790) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point $Ultimate##92(lines 284 588) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point $Ultimate##96(lines 292 578) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 538) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point $Ultimate##82(lines 264 679) no Hoare annotation was computed. [2023-11-23 15:00:09,004 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 870) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 984) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L1013(lines 1013 1023) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L749(lines 708 757) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point $Ultimate##86(lines 273 667) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 427) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 785) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point $Ultimate##70(lines 242 775) no Hoare annotation was computed. [2023-11-23 15:00:09,005 INFO L899 garLoopResultBuilder]: For program point L618(lines 618 639) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point $Ultimate##176(lines 716 745) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 533) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point $Ultimate##78(lines 256 689) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 583) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 865) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 472) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L157(lines 154 984) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 740) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L620(lines 620 634) no Hoare annotation was computed. [2023-11-23 15:00:09,006 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 860) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L522(lines 519 533) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L159(lines 159 961) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point $Ultimate##128(lines 359 402) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L919(lines 919 937) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L721(lines 721 735) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L325(lines 320 477) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 780) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 855) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L623(lines 620 634) no Hoare annotation was computed. [2023-11-23 15:00:09,007 INFO L899 garLoopResultBuilder]: For program point L524(lines 501 565) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 401) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point $Ultimate##148(lines 514 543) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 684) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 931) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L327(lines 301 566) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 573) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 850) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L162(lines 159 961) no Hoare annotation was computed. [2023-11-23 15:00:09,008 INFO L899 garLoopResultBuilder]: For program point L988(lines 988 1006) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L724(lines 721 735) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L625(lines 602 666) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point $Ultimate##162(lines 615 644) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L362(lines 342 465) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 845) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 938) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L990(lines 990 1000) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L726(lines 703 767) no Hoare annotation was computed. [2023-11-23 15:00:09,009 INFO L899 garLoopResultBuilder]: For program point L297(lines 292 578) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point $Ultimate##100(lines 301 566) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point $Ultimate##106(lines 312 487) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point $Ultimate##110(lines 320 477) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 840) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point L530(lines 517 538) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 674) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point L167(lines 164 938) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point $Ultimate##126(lines 356 415) no Hoare annotation was computed. [2023-11-23 15:00:09,010 INFO L899 garLoopResultBuilder]: For program point $Ultimate##124(lines 353 428) no Hoare annotation was computed. [2023-11-23 15:00:09,013 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-23 15:00:09,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 15:00:09,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:00:09 BoogieIcfgContainer [2023-11-23 15:00:09,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 15:00:09,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 15:00:09,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 15:00:09,021 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 15:00:09,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:46" (3/4) ... [2023-11-23 15:00:09,023 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 15:00:09,038 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 15:00:09,039 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 15:00:09,039 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 15:00:09,040 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 15:00:09,156 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 15:00:09,157 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-23 15:00:09,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 15:00:09,158 INFO L158 Benchmark]: Toolchain (without parser) took 23375.85ms. Allocated memory was 159.4MB in the beginning and 12.9GB in the end (delta: 12.7GB). Free memory was 130.5MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-11-23 15:00:09,158 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 15:00:09,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.82ms. Allocated memory is still 159.4MB. Free memory was 130.5MB in the beginning and 110.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 15:00:09,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.93ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 106.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 15:00:09,159 INFO L158 Benchmark]: Boogie Preprocessor took 74.82ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 103.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 15:00:09,159 INFO L158 Benchmark]: RCFGBuilder took 697.53ms. Allocated memory is still 159.4MB. Free memory was 103.5MB in the beginning and 123.4MB in the end (delta: -20.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-23 15:00:09,161 INFO L158 Benchmark]: TraceAbstraction took 22043.76ms. Allocated memory was 159.4MB in the beginning and 12.9GB in the end (delta: 12.7GB). Free memory was 122.4MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-11-23 15:00:09,161 INFO L158 Benchmark]: Witness Printer took 135.86ms. Allocated memory is still 12.9GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 15:00:09,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.82ms. Allocated memory is still 159.4MB. Free memory was 130.5MB in the beginning and 110.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.93ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 106.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.82ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 103.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 697.53ms. Allocated memory is still 159.4MB. Free memory was 103.5MB in the beginning and 123.4MB in the end (delta: -20.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 22043.76ms. Allocated memory was 159.4MB in the beginning and 12.9GB in the end (delta: 12.7GB). Free memory was 122.4MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 135.86ms. Allocated memory is still 12.9GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. 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: 379]: 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, 133 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 26, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8222 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8222 mSDsluCounter, 15909 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9611 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 6298 mSDtfsCounter, 727 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118962occurred in iteration=21, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 91894 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 2556 NumberOfCodeBlocks, 2556 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2675 ConstructedInterpolants, 0 QuantifiedInterpolants, 10669 SizeOfPredicates, 3 NumberOfNonLiveVariables, 547 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 28 InterpolantComputations, 25 PerfectInterpolantSequences, 724/790 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 RESULT: Ultimate proved your program to be correct! [2023-11-23 15:00:09,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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