./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label45.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/eca-rers2012/Problem13_label45.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 2e210509e505e706510a09c6375318a552974bcae2c812476edd01f44c4d9064 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:34:39,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:34:39,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:34:39,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:34:39,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:34:39,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:34:39,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:34:39,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:34:39,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:34:39,880 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:34:39,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:34:39,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:34:39,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:34:39,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:34:39,882 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:34:39,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:34:39,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:34:39,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:34:39,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:34:39,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:34:39,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:34:39,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:34:39,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:34:39,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:34:39,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:34:39,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:34:39,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:34:39,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:34:39,887 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:34:39,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:34:39,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:34:39,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:34:39,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:34:39,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:34:39,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:34:39,890 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:34:39,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:34:39,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:34:39,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:34:39,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:34:39,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:34:39,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:34:39,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e210509e505e706510a09c6375318a552974bcae2c812476edd01f44c4d9064 [2024-11-09 19:34:40,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:34:40,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:34:40,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:34:40,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:34:40,190 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:34:40,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label45.c [2024-11-09 19:34:41,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:34:42,204 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:34:42,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label45.c [2024-11-09 19:34:42,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2787377/2ff5cb6f89774b09bcbed01092cf902a/FLAGe3e97467b [2024-11-09 19:34:42,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f2787377/2ff5cb6f89774b09bcbed01092cf902a [2024-11-09 19:34:42,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:34:42,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:34:42,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:34:42,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:34:42,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:34:42,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:34:42" (1/1) ... [2024-11-09 19:34:42,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5f309f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:42, skipping insertion in model container [2024-11-09 19:34:42,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:34:42" (1/1) ... [2024-11-09 19:34:42,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:34:42,646 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label45.c[1393,1406] [2024-11-09 19:34:43,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:34:43,557 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:34:43,571 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label45.c[1393,1406] [2024-11-09 19:34:44,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:34:44,132 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:34:44,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44 WrapperNode [2024-11-09 19:34:44,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:34:44,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:34:44,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:34:44,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:34:44,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:44,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:44,771 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:34:44,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:34:44,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:34:44,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:34:44,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:34:44,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:44,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:44,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,123 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:34:45,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:34:45,499 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:34:45,499 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:34:45,500 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:34:45,501 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (1/1) ... [2024-11-09 19:34:45,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:34:45,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:34:45,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:34:45,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:34:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:34:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:34:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:34:45,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:34:45,648 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:34:45,650 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:34:51,714 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:34:51,714 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:34:51,716 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:34:52,023 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:34:52,024 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:34:52,067 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:34:52,068 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:34:52,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:34:52 BoogieIcfgContainer [2024-11-09 19:34:52,069 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:34:52,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:34:52,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:34:52,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:34:52,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:34:42" (1/3) ... [2024-11-09 19:34:52,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa6c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:34:52, skipping insertion in model container [2024-11-09 19:34:52,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:44" (2/3) ... [2024-11-09 19:34:52,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa6c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:34:52, skipping insertion in model container [2024-11-09 19:34:52,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:34:52" (3/3) ... [2024-11-09 19:34:52,079 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label45.c [2024-11-09 19:34:52,095 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:34:52,095 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:34:52,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:34:52,209 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@118a0bda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:34:52,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:34:52,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:34:52,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 19:34:52,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:52,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:34:52,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:52,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:52,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1618897768, now seen corresponding path program 1 times [2024-11-09 19:34:52,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:52,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554561386] [2024-11-09 19:34:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:34:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:52,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554561386] [2024-11-09 19:34:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554561386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:34:52,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953899170] [2024-11-09 19:34:52,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:52,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:52,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:52,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:52,475 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:34:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:57,687 INFO L93 Difference]: Finished difference Result 3153 states and 7960 transitions. [2024-11-09 19:34:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:57,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 19:34:57,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:57,720 INFO L225 Difference]: With dead ends: 3153 [2024-11-09 19:34:57,721 INFO L226 Difference]: Without dead ends: 1967 [2024-11-09 19:34:57,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:57,729 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 1888 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 4730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 4146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:57,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 995 Invalid, 4730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 4146 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-09 19:34:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2024-11-09 19:34:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1954. [2024-11-09 19:34:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1953 states have (on average 2.3860727086533537) internal successors, (4660), 1953 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:34:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 4660 transitions. [2024-11-09 19:34:57,872 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 4660 transitions. Word has length 9 [2024-11-09 19:34:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:57,872 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 4660 transitions. [2024-11-09 19:34:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:34:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 4660 transitions. [2024-11-09 19:34:57,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 19:34:57,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:57,875 INFO L215 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] [2024-11-09 19:34:57,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:34:57,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:57,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1291204041, now seen corresponding path program 1 times [2024-11-09 19:34:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:57,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568995647] [2024-11-09 19:34:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:34:58,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:58,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568995647] [2024-11-09 19:34:58,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568995647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:58,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:58,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:34:58,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027131354] [2024-11-09 19:34:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:58,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:58,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:58,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:58,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:58,184 INFO L87 Difference]: Start difference. First operand 1954 states and 4660 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:02,746 INFO L93 Difference]: Finished difference Result 5551 states and 13527 transitions. [2024-11-09 19:35:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-09 19:35:02,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:02,762 INFO L225 Difference]: With dead ends: 5551 [2024-11-09 19:35:02,762 INFO L226 Difference]: Without dead ends: 3599 [2024-11-09 19:35:02,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:02,766 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 1641 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 4773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:02,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 1016 Invalid, 4773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:35:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2024-11-09 19:35:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 3586. [2024-11-09 19:35:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3585 states have (on average 2.303207810320781) internal successors, (8257), 3585 states have internal predecessors, (8257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:02,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 8257 transitions. [2024-11-09 19:35:02,835 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 8257 transitions. Word has length 81 [2024-11-09 19:35:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:02,835 INFO L471 AbstractCegarLoop]: Abstraction has 3586 states and 8257 transitions. [2024-11-09 19:35:02,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 8257 transitions. [2024-11-09 19:35:02,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 19:35:02,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:02,839 INFO L215 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] [2024-11-09 19:35:02,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:35:02,839 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:02,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1119568453, now seen corresponding path program 1 times [2024-11-09 19:35:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676384402] [2024-11-09 19:35:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676384402] [2024-11-09 19:35:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676384402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:03,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:03,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258507667] [2024-11-09 19:35:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:03,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:03,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:03,032 INFO L87 Difference]: Start difference. First operand 3586 states and 8257 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:07,270 INFO L93 Difference]: Finished difference Result 10415 states and 24290 transitions. [2024-11-09 19:35:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:07,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-09 19:35:07,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:07,301 INFO L225 Difference]: With dead ends: 10415 [2024-11-09 19:35:07,301 INFO L226 Difference]: Without dead ends: 6831 [2024-11-09 19:35:07,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:07,308 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 1645 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4306 mSolverCounterSat, 557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 4863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 4306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:07,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 598 Invalid, 4863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 4306 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:35:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2024-11-09 19:35:07,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6818. [2024-11-09 19:35:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 2.2741675223705444) internal successors, (15503), 6817 states have internal predecessors, (15503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 15503 transitions. [2024-11-09 19:35:07,566 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 15503 transitions. Word has length 95 [2024-11-09 19:35:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:07,570 INFO L471 AbstractCegarLoop]: Abstraction has 6818 states and 15503 transitions. [2024-11-09 19:35:07,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 15503 transitions. [2024-11-09 19:35:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 19:35:07,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:07,577 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:07,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:35:07,577 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:07,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:07,578 INFO L85 PathProgramCache]: Analyzing trace with hash -719023755, now seen corresponding path program 1 times [2024-11-09 19:35:07,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:07,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053098416] [2024-11-09 19:35:07,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:07,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:07,810 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:07,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:07,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053098416] [2024-11-09 19:35:07,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053098416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:07,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:07,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:07,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052673182] [2024-11-09 19:35:07,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:07,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:07,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:07,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:07,816 INFO L87 Difference]: Start difference. First operand 6818 states and 15503 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:12,164 INFO L93 Difference]: Finished difference Result 19975 states and 45863 transitions. [2024-11-09 19:35:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:12,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-09 19:35:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:12,208 INFO L225 Difference]: With dead ends: 19975 [2024-11-09 19:35:12,208 INFO L226 Difference]: Without dead ends: 13159 [2024-11-09 19:35:12,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:12,218 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 1495 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 4685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:12,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1115 Invalid, 4685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 3888 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:35:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13159 states. [2024-11-09 19:35:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13159 to 13131. [2024-11-09 19:35:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13131 states, 13130 states have (on average 2.147829398324448) internal successors, (28201), 13130 states have internal predecessors, (28201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:12,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13131 states to 13131 states and 28201 transitions. [2024-11-09 19:35:12,474 INFO L78 Accepts]: Start accepts. Automaton has 13131 states and 28201 transitions. Word has length 111 [2024-11-09 19:35:12,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:12,475 INFO L471 AbstractCegarLoop]: Abstraction has 13131 states and 28201 transitions. [2024-11-09 19:35:12,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:12,476 INFO L276 IsEmpty]: Start isEmpty. Operand 13131 states and 28201 transitions. [2024-11-09 19:35:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-09 19:35:12,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:12,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:12,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:35:12,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:12,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash -208173100, now seen corresponding path program 1 times [2024-11-09 19:35:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:12,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982620635] [2024-11-09 19:35:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 19:35:12,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982620635] [2024-11-09 19:35:12,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982620635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:12,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:12,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:12,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380014557] [2024-11-09 19:35:12,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:12,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:12,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:12,947 INFO L87 Difference]: Start difference. First operand 13131 states and 28201 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:16,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:16,672 INFO L93 Difference]: Finished difference Result 25472 states and 54871 transitions. [2024-11-09 19:35:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:16,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 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 203 [2024-11-09 19:35:16,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:16,713 INFO L225 Difference]: With dead ends: 25472 [2024-11-09 19:35:16,714 INFO L226 Difference]: Without dead ends: 13131 [2024-11-09 19:35:16,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:16,729 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 1416 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:16,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1218 Invalid, 3978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3964 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:35:16,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13131 states. [2024-11-09 19:35:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 13131. [2024-11-09 19:35:17,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13131 states, 13130 states have (on average 2.1466869763899465) internal successors, (28186), 13130 states have internal predecessors, (28186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13131 states to 13131 states and 28186 transitions. [2024-11-09 19:35:17,058 INFO L78 Accepts]: Start accepts. Automaton has 13131 states and 28186 transitions. Word has length 203 [2024-11-09 19:35:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:17,058 INFO L471 AbstractCegarLoop]: Abstraction has 13131 states and 28186 transitions. [2024-11-09 19:35:17,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13131 states and 28186 transitions. [2024-11-09 19:35:17,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 19:35:17,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:17,063 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:17,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:35:17,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:17,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2039501910, now seen corresponding path program 1 times [2024-11-09 19:35:17,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:17,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459809357] [2024-11-09 19:35:17,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:17,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:17,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459809357] [2024-11-09 19:35:17,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459809357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:17,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:17,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802946365] [2024-11-09 19:35:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:17,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:35:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:35:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:17,319 INFO L87 Difference]: Start difference. First operand 13131 states and 28186 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:25,793 INFO L93 Difference]: Finished difference Result 45460 states and 99181 transitions. [2024-11-09 19:35:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:35:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2024-11-09 19:35:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:25,868 INFO L225 Difference]: With dead ends: 45460 [2024-11-09 19:35:25,869 INFO L226 Difference]: Without dead ends: 33119 [2024-11-09 19:35:25,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:25,883 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 3038 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 10321 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 10933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 10321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:25,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3038 Valid, 1269 Invalid, 10933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 10321 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 19:35:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33119 states. [2024-11-09 19:35:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33119 to 32899. [2024-11-09 19:35:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32899 states, 32898 states have (on average 2.1238677123229377) internal successors, (69871), 32898 states have internal predecessors, (69871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32899 states to 32899 states and 69871 transitions. [2024-11-09 19:35:26,334 INFO L78 Accepts]: Start accepts. Automaton has 32899 states and 69871 transitions. Word has length 208 [2024-11-09 19:35:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:26,335 INFO L471 AbstractCegarLoop]: Abstraction has 32899 states and 69871 transitions. [2024-11-09 19:35:26,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 32899 states and 69871 transitions. [2024-11-09 19:35:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-09 19:35:26,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:26,338 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:26,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:35:26,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:26,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash 161169161, now seen corresponding path program 1 times [2024-11-09 19:35:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:26,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77172342] [2024-11-09 19:35:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:26,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:26,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:26,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77172342] [2024-11-09 19:35:26,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77172342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:26,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:26,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:26,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545765806] [2024-11-09 19:35:26,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:26,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:26,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:26,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:26,544 INFO L87 Difference]: Start difference. First operand 32899 states and 69871 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:31,036 INFO L93 Difference]: Finished difference Result 80000 states and 172371 transitions. [2024-11-09 19:35:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:31,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 210 [2024-11-09 19:35:31,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:31,145 INFO L225 Difference]: With dead ends: 80000 [2024-11-09 19:35:31,145 INFO L226 Difference]: Without dead ends: 47891 [2024-11-09 19:35:31,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:31,178 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 1554 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 4756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:31,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1058 Invalid, 4756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:35:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47891 states. [2024-11-09 19:35:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47891 to 47879. [2024-11-09 19:35:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47879 states, 47878 states have (on average 2.1108651155019005) internal successors, (101064), 47878 states have internal predecessors, (101064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47879 states to 47879 states and 101064 transitions. [2024-11-09 19:35:31,862 INFO L78 Accepts]: Start accepts. Automaton has 47879 states and 101064 transitions. Word has length 210 [2024-11-09 19:35:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:31,863 INFO L471 AbstractCegarLoop]: Abstraction has 47879 states and 101064 transitions. [2024-11-09 19:35:31,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,863 INFO L276 IsEmpty]: Start isEmpty. Operand 47879 states and 101064 transitions. [2024-11-09 19:35:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-09 19:35:31,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:31,866 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:31,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:35:31,866 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:31,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:31,867 INFO L85 PathProgramCache]: Analyzing trace with hash 582541599, now seen corresponding path program 1 times [2024-11-09 19:35:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:31,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143035912] [2024-11-09 19:35:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:31,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:32,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143035912] [2024-11-09 19:35:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143035912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:32,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:32,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662174858] [2024-11-09 19:35:32,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:32,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:32,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:32,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:32,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:32,022 INFO L87 Difference]: Start difference. First operand 47879 states and 101064 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:36,328 INFO L93 Difference]: Finished difference Result 94783 states and 200356 transitions. [2024-11-09 19:35:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:36,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-11-09 19:35:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:36,420 INFO L225 Difference]: With dead ends: 94783 [2024-11-09 19:35:36,420 INFO L226 Difference]: Without dead ends: 47694 [2024-11-09 19:35:36,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:36,462 INFO L432 NwaCegarLoop]: 2228 mSDtfsCounter, 1755 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 4384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:36,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 2373 Invalid, 4384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 19:35:36,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47694 states. [2024-11-09 19:35:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47694 to 47688. [2024-11-09 19:35:37,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47688 states, 47687 states have (on average 2.0456937949546) internal successors, (97553), 47687 states have internal predecessors, (97553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:37,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47688 states to 47688 states and 97553 transitions. [2024-11-09 19:35:37,615 INFO L78 Accepts]: Start accepts. Automaton has 47688 states and 97553 transitions. Word has length 225 [2024-11-09 19:35:37,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:37,616 INFO L471 AbstractCegarLoop]: Abstraction has 47688 states and 97553 transitions. [2024-11-09 19:35:37,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 47688 states and 97553 transitions. [2024-11-09 19:35:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-09 19:35:37,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:37,619 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:35:37,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:35:37,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:37,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash 641151569, now seen corresponding path program 1 times [2024-11-09 19:35:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124703874] [2024-11-09 19:35:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:37,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-09 19:35:37,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:37,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124703874] [2024-11-09 19:35:37,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124703874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:37,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:37,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559114290] [2024-11-09 19:35:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:37,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:37,982 INFO L87 Difference]: Start difference. First operand 47688 states and 97553 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:42,797 INFO L93 Difference]: Finished difference Result 126097 states and 259253 transitions. [2024-11-09 19:35:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:42,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 241 [2024-11-09 19:35:42,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:42,956 INFO L225 Difference]: With dead ends: 126097 [2024-11-09 19:35:42,957 INFO L226 Difference]: Without dead ends: 79199 [2024-11-09 19:35:42,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:42,994 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 1561 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 4613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:42,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 986 Invalid, 4613 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [864 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:35:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79199 states. [2024-11-09 19:35:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79199 to 73677. [2024-11-09 19:35:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73677 states, 73676 states have (on average 2.022666811444704) internal successors, (149022), 73676 states have internal predecessors, (149022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73677 states to 73677 states and 149022 transitions. [2024-11-09 19:35:44,421 INFO L78 Accepts]: Start accepts. Automaton has 73677 states and 149022 transitions. Word has length 241 [2024-11-09 19:35:44,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:44,421 INFO L471 AbstractCegarLoop]: Abstraction has 73677 states and 149022 transitions. [2024-11-09 19:35:44,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 73677 states and 149022 transitions. [2024-11-09 19:35:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 19:35:44,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:44,430 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:44,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:35:44,430 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:44,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2058232722, now seen corresponding path program 1 times [2024-11-09 19:35:44,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:44,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711125834] [2024-11-09 19:35:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 19:35:44,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711125834] [2024-11-09 19:35:44,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711125834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:44,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:44,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013117561] [2024-11-09 19:35:44,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:44,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:35:44,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:35:44,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:44,887 INFO L87 Difference]: Start difference. First operand 73677 states and 149022 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:53,274 INFO L93 Difference]: Finished difference Result 198780 states and 402806 transitions. [2024-11-09 19:35:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:35:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 295 [2024-11-09 19:35:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:53,473 INFO L225 Difference]: With dead ends: 198780 [2024-11-09 19:35:53,473 INFO L226 Difference]: Without dead ends: 125893 [2024-11-09 19:35:53,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:53,522 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 3151 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8861 mSolverCounterSat, 1102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 9963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 8861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:53,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 764 Invalid, 9963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1102 Valid, 8861 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-09 19:35:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125893 states. [2024-11-09 19:35:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125893 to 124193. [2024-11-09 19:35:55,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124193 states, 124192 states have (on average 2.018608283947436) internal successors, (250695), 124192 states have internal predecessors, (250695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124193 states to 124193 states and 250695 transitions. [2024-11-09 19:35:55,871 INFO L78 Accepts]: Start accepts. Automaton has 124193 states and 250695 transitions. Word has length 295 [2024-11-09 19:35:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:55,872 INFO L471 AbstractCegarLoop]: Abstraction has 124193 states and 250695 transitions. [2024-11-09 19:35:55,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 124193 states and 250695 transitions. [2024-11-09 19:35:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-09 19:35:55,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:55,880 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:55,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:35:55,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:55,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1980730563, now seen corresponding path program 1 times [2024-11-09 19:35:55,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:55,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681039635] [2024-11-09 19:35:55,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:55,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 252 proven. 26 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 19:35:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681039635] [2024-11-09 19:35:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681039635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:35:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252299837] [2024-11-09 19:35:56,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:35:56,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:35:56,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:35:56,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:35:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:57,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:35:57,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:35:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 19:35:57,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:35:57,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252299837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:57,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:35:57,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:35:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143149250] [2024-11-09 19:35:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:57,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:57,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:57,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:35:57,489 INFO L87 Difference]: Start difference. First operand 124193 states and 250695 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)