./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label57.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_label57.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 606add1ed9f1e0586ce8d6fd9687905298c8e4323967309eabbf0457b8710a5c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:03:15,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:03:15,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:03:15,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:03:15,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:03:15,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:03:15,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:03:15,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:03:15,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:03:15,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:03:15,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:03:15,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:03:15,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:03:15,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:03:15,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:03:15,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:03:15,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:03:15,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:03:15,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:03:15,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:03:15,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:03:15,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:03:15,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:03:15,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:03:15,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:03:15,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:03:15,947 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:03:15,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:03:15,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:03:15,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:03:15,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:03:15,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:03:15,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 606add1ed9f1e0586ce8d6fd9687905298c8e4323967309eabbf0457b8710a5c [2024-11-16 04:03:16,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:03:16,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:03:16,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:03:16,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:03:16,175 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:03:16,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label57.c [2024-11-16 04:03:17,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:03:17,943 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:03:17,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label57.c [2024-11-16 04:03:18,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4439f97/e28c323a844d4874b67f38a49c50075c/FLAG79dc45393 [2024-11-16 04:03:18,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4439f97/e28c323a844d4874b67f38a49c50075c [2024-11-16 04:03:18,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:03:18,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:03:18,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:03:18,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:03:18,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:03:18,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:18" (1/1) ... [2024-11-16 04:03:18,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796e9bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:18, skipping insertion in model container [2024-11-16 04:03:18,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:18" (1/1) ... [2024-11-16 04:03:18,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:03:18,402 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_label57.c[8676,8689] [2024-11-16 04:03:18,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:03:18,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:03:18,990 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_label57.c[8676,8689] [2024-11-16 04:03:19,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:03:19,353 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:03:19,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19 WrapperNode [2024-11-16 04:03:19,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:03:19,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:03:19,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:03:19,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:03:19,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:19,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:19,828 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 04:03:19,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:03:19,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:03:19,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:03:19,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:03:19,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:19,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:19,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,141 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]. [2024-11-16 04:03:20,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,325 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:03:20,444 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:03:20,444 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:03:20,444 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:03:20,445 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (1/1) ... [2024-11-16 04:03:20,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:03:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:03:20,474 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) [2024-11-16 04:03:20,480 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 [2024-11-16 04:03:20,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:03:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:03:20,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:03:20,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:03:20,567 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:03:20,568 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:03:24,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 04:03:24,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 04:03:24,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 04:03:24,688 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 04:03:24,688 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:03:24,733 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:03:24,737 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:03:24,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:03:24 BoogieIcfgContainer [2024-11-16 04:03:24,737 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:03:24,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:03:24,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:03:24,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:03:24,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:03:18" (1/3) ... [2024-11-16 04:03:24,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b3dfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:24, skipping insertion in model container [2024-11-16 04:03:24,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:19" (2/3) ... [2024-11-16 04:03:24,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b3dfbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:24, skipping insertion in model container [2024-11-16 04:03:24,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:03:24" (3/3) ... [2024-11-16 04:03:24,745 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label57.c [2024-11-16 04:03:24,756 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:03:24,757 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:03:24,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:03:24,827 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;@174e5fe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:03:24,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:03:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:24,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 04:03:24,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:24,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:24,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 67253723, now seen corresponding path program 1 times [2024-11-16 04:03:24,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:24,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118038421] [2024-11-16 04:03:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:24,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:25,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:25,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118038421] [2024-11-16 04:03:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118038421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:25,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224016863] [2024-11-16 04:03:25,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:25,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:03:25,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:25,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:03:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:03:25,289 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:30,977 INFO L93 Difference]: Finished difference Result 3836 states and 7213 transitions. [2024-11-16 04:03:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:03:30,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-16 04:03:30,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:31,001 INFO L225 Difference]: With dead ends: 3836 [2024-11-16 04:03:31,001 INFO L226 Difference]: Without dead ends: 2668 [2024-11-16 04:03:31,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:03:31,011 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2673 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 1607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:31,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2673 Valid, 1057 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1607 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-16 04:03:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-16 04:03:31,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2667. [2024-11-16 04:03:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 1.4602400600150038) internal successors, (3893), 2666 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3893 transitions. [2024-11-16 04:03:31,118 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3893 transitions. Word has length 63 [2024-11-16 04:03:31,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:31,119 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3893 transitions. [2024-11-16 04:03:31,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:31,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3893 transitions. [2024-11-16 04:03:31,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-16 04:03:31,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:31,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:03:31,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:03:31,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:31,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1090028794, now seen corresponding path program 1 times [2024-11-16 04:03:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:31,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631781288] [2024-11-16 04:03:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:31,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:31,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631781288] [2024-11-16 04:03:31,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631781288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:31,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:31,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:31,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667326663] [2024-11-16 04:03:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:31,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:03:31,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:31,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:03:31,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:03:31,519 INFO L87 Difference]: Start difference. First operand 2667 states and 3893 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:37,277 INFO L93 Difference]: Finished difference Result 7875 states and 12680 transitions. [2024-11-16 04:03:37,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:03:37,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2024-11-16 04:03:37,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:37,293 INFO L225 Difference]: With dead ends: 7875 [2024-11-16 04:03:37,293 INFO L226 Difference]: Without dead ends: 5998 [2024-11-16 04:03:37,295 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 [2024-11-16 04:03:37,295 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 1617 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 6333 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 7163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 6333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:37,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 1196 Invalid, 7163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [830 Valid, 6333 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-16 04:03:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2024-11-16 04:03:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 5867. [2024-11-16 04:03:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 1.4445959768155472) internal successors, (8474), 5866 states have internal predecessors, (8474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 8474 transitions. [2024-11-16 04:03:37,399 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 8474 transitions. Word has length 189 [2024-11-16 04:03:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:37,400 INFO L471 AbstractCegarLoop]: Abstraction has 5867 states and 8474 transitions. [2024-11-16 04:03:37,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 8474 transitions. [2024-11-16 04:03:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-16 04:03:37,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:37,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:03:37,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:03:37,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:37,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash 358409760, now seen corresponding path program 1 times [2024-11-16 04:03:37,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:37,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700543025] [2024-11-16 04:03:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:37,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 04:03:37,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:37,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700543025] [2024-11-16 04:03:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700543025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:37,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:37,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:37,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621883678] [2024-11-16 04:03:37,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:37,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:37,619 INFO L87 Difference]: Start difference. First operand 5867 states and 8474 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:40,623 INFO L93 Difference]: Finished difference Result 15709 states and 23412 transitions. [2024-11-16 04:03:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:40,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 232 [2024-11-16 04:03:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:40,681 INFO L225 Difference]: With dead ends: 15709 [2024-11-16 04:03:40,685 INFO L226 Difference]: Without dead ends: 10632 [2024-11-16 04:03:40,701 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 [2024-11-16 04:03:40,702 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 920 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:40,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 924 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:03:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10632 states. [2024-11-16 04:03:40,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 10622. [2024-11-16 04:03:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10622 states, 10621 states have (on average 1.35467470106393) internal successors, (14388), 10621 states have internal predecessors, (14388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10622 states to 10622 states and 14388 transitions. [2024-11-16 04:03:40,824 INFO L78 Accepts]: Start accepts. Automaton has 10622 states and 14388 transitions. Word has length 232 [2024-11-16 04:03:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:40,827 INFO L471 AbstractCegarLoop]: Abstraction has 10622 states and 14388 transitions. [2024-11-16 04:03:40,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 10622 states and 14388 transitions. [2024-11-16 04:03:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-16 04:03:40,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:40,832 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:40,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:03:40,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:40,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 148168647, now seen corresponding path program 1 times [2024-11-16 04:03:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:40,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926538180] [2024-11-16 04:03:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 04:03:41,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:41,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926538180] [2024-11-16 04:03:41,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926538180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:41,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:41,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:41,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227621028] [2024-11-16 04:03:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:41,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:41,055 INFO L87 Difference]: Start difference. First operand 10622 states and 14388 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:44,491 INFO L93 Difference]: Finished difference Result 28389 states and 39278 transitions. [2024-11-16 04:03:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:44,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 246 [2024-11-16 04:03:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:44,526 INFO L225 Difference]: With dead ends: 28389 [2024-11-16 04:03:44,526 INFO L226 Difference]: Without dead ends: 18557 [2024-11-16 04:03:44,540 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 [2024-11-16 04:03:44,541 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 910 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:44,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 619 Invalid, 3416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 2872 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 04:03:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18557 states. [2024-11-16 04:03:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18557 to 18547. [2024-11-16 04:03:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18547 states, 18546 states have (on average 1.3247061360940364) internal successors, (24568), 18546 states have internal predecessors, (24568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18547 states to 18547 states and 24568 transitions. [2024-11-16 04:03:44,782 INFO L78 Accepts]: Start accepts. Automaton has 18547 states and 24568 transitions. Word has length 246 [2024-11-16 04:03:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:44,783 INFO L471 AbstractCegarLoop]: Abstraction has 18547 states and 24568 transitions. [2024-11-16 04:03:44,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:44,786 INFO L276 IsEmpty]: Start isEmpty. Operand 18547 states and 24568 transitions. [2024-11-16 04:03:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-16 04:03:44,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:44,791 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:44,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:03:44,791 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1928814028, now seen corresponding path program 1 times [2024-11-16 04:03:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991460438] [2024-11-16 04:03:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:03:44,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991460438] [2024-11-16 04:03:44,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991460438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:44,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:44,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:44,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334255231] [2024-11-16 04:03:44,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:44,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:44,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:44,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:44,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:44,947 INFO L87 Difference]: Start difference. First operand 18547 states and 24568 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:48,236 INFO L93 Difference]: Finished difference Result 52082 states and 69866 transitions. [2024-11-16 04:03:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2024-11-16 04:03:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:48,293 INFO L225 Difference]: With dead ends: 52082 [2024-11-16 04:03:48,294 INFO L226 Difference]: Without dead ends: 34325 [2024-11-16 04:03:48,314 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 [2024-11-16 04:03:48,316 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 851 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:48,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 952 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 04:03:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34325 states. [2024-11-16 04:03:48,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34325 to 34315. [2024-11-16 04:03:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34315 states, 34314 states have (on average 1.2545899632802937) internal successors, (43050), 34314 states have internal predecessors, (43050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34315 states to 34315 states and 43050 transitions. [2024-11-16 04:03:48,746 INFO L78 Accepts]: Start accepts. Automaton has 34315 states and 43050 transitions. Word has length 264 [2024-11-16 04:03:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:48,747 INFO L471 AbstractCegarLoop]: Abstraction has 34315 states and 43050 transitions. [2024-11-16 04:03:48,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 34315 states and 43050 transitions. [2024-11-16 04:03:48,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-16 04:03:48,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:48,750 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:48,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:03:48,751 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:48,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:48,751 INFO L85 PathProgramCache]: Analyzing trace with hash 326937088, now seen corresponding path program 1 times [2024-11-16 04:03:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:48,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416024931] [2024-11-16 04:03:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-16 04:03:48,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:48,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416024931] [2024-11-16 04:03:48,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416024931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:48,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:48,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:03:48,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559487651] [2024-11-16 04:03:48,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:48,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:03:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:03:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:03:48,948 INFO L87 Difference]: Start difference. First operand 34315 states and 43050 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:52,153 INFO L93 Difference]: Finished difference Result 93048 states and 117727 transitions. [2024-11-16 04:03:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:03:52,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 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 [2024-11-16 04:03:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:52,231 INFO L225 Difference]: With dead ends: 93048 [2024-11-16 04:03:52,232 INFO L226 Difference]: Without dead ends: 59523 [2024-11-16 04:03:52,267 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 [2024-11-16 04:03:52,268 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 857 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:52,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 988 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 04:03:52,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59523 states. [2024-11-16 04:03:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59523 to 56366. [2024-11-16 04:03:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56366 states, 56365 states have (on average 1.2002483810875544) internal successors, (67652), 56365 states have internal predecessors, (67652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56366 states to 56366 states and 67652 transitions. [2024-11-16 04:03:52,916 INFO L78 Accepts]: Start accepts. Automaton has 56366 states and 67652 transitions. Word has length 295 [2024-11-16 04:03:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:03:52,917 INFO L471 AbstractCegarLoop]: Abstraction has 56366 states and 67652 transitions. [2024-11-16 04:03:52,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 56366 states and 67652 transitions. [2024-11-16 04:03:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 04:03:52,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:03:52,922 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:03:52,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:03:52,922 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:03:52,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:03:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1340311504, now seen corresponding path program 1 times [2024-11-16 04:03:52,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:03:52,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296059303] [2024-11-16 04:03:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:03:52,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:03:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:03:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 04:03:53,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:03:53,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296059303] [2024-11-16 04:03:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296059303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:03:53,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:03:53,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:03:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885903828] [2024-11-16 04:03:53,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:03:53,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:03:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:03:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:03:53,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:03:53,109 INFO L87 Difference]: Start difference. First operand 56366 states and 67652 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:03:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:03:58,933 INFO L93 Difference]: Finished difference Result 151565 states and 184048 transitions. [2024-11-16 04:03:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:03:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2024-11-16 04:03:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:03:59,038 INFO L225 Difference]: With dead ends: 151565 [2024-11-16 04:03:59,038 INFO L226 Difference]: Without dead ends: 95989 [2024-11-16 04:03:59,082 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 [2024-11-16 04:03:59,083 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 1745 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 6068 mSolverCounterSat, 1183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 7251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 6068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:03:59,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 713 Invalid, 7251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1183 Valid, 6068 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-16 04:03:59,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95989 states. [2024-11-16 04:04:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95989 to 95073. [2024-11-16 04:04:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95073 states, 95072 states have (on average 1.1960408953214405) internal successors, (113710), 95072 states have internal predecessors, (113710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95073 states to 95073 states and 113710 transitions. [2024-11-16 04:04:00,470 INFO L78 Accepts]: Start accepts. Automaton has 95073 states and 113710 transitions. Word has length 354 [2024-11-16 04:04:00,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:00,471 INFO L471 AbstractCegarLoop]: Abstraction has 95073 states and 113710 transitions. [2024-11-16 04:04:00,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 95073 states and 113710 transitions. [2024-11-16 04:04:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-16 04:04:00,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:00,613 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:00,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:04:00,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:00,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:00,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2121370834, now seen corresponding path program 1 times [2024-11-16 04:04:00,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:00,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429110397] [2024-11-16 04:04:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:00,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 04:04:00,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:00,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429110397] [2024-11-16 04:04:00,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429110397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:00,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:00,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:00,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743391937] [2024-11-16 04:04:00,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:00,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:00,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:00,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:00,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:00,985 INFO L87 Difference]: Start difference. First operand 95073 states and 113710 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) [2024-11-16 04:04:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:04,207 INFO L93 Difference]: Finished difference Result 220128 states and 262056 transitions. [2024-11-16 04:04:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:04,212 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 363 [2024-11-16 04:04:04,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:04,403 INFO L225 Difference]: With dead ends: 220128 [2024-11-16 04:04:04,403 INFO L226 Difference]: Without dead ends: 125845 [2024-11-16 04:04:04,440 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 [2024-11-16 04:04:04,441 INFO L432 NwaCegarLoop]: 1862 mSDtfsCounter, 752 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2606 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 2914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:04,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 2006 Invalid, 2914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2606 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 04:04:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125845 states. [2024-11-16 04:04:05,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125845 to 125807. [2024-11-16 04:04:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125807 states, 125806 states have (on average 1.1690936839260448) internal successors, (147079), 125806 states have internal predecessors, (147079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125807 states to 125807 states and 147079 transitions. [2024-11-16 04:04:06,360 INFO L78 Accepts]: Start accepts. Automaton has 125807 states and 147079 transitions. Word has length 363 [2024-11-16 04:04:06,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:06,361 INFO L471 AbstractCegarLoop]: Abstraction has 125807 states and 147079 transitions. [2024-11-16 04:04:06,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-16 04:04:06,361 INFO L276 IsEmpty]: Start isEmpty. Operand 125807 states and 147079 transitions. [2024-11-16 04:04:06,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-11-16 04:04:06,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:06,371 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 04:04:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:04:06,372 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:06,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:06,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1336067371, now seen corresponding path program 1 times [2024-11-16 04:04:06,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:06,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252691344] [2024-11-16 04:04:06,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:06,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:06,498 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 04:04:06,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:06,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252691344] [2024-11-16 04:04:06,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252691344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:06,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:06,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:06,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774381300] [2024-11-16 04:04:06,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:06,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:06,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:06,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:06,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:06,501 INFO L87 Difference]: Start difference. First operand 125807 states and 147079 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:10,060 INFO L93 Difference]: Finished difference Result 257890 states and 300404 transitions. [2024-11-16 04:04:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:10,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 383 [2024-11-16 04:04:10,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:10,228 INFO L225 Difference]: With dead ends: 257890 [2024-11-16 04:04:10,228 INFO L226 Difference]: Without dead ends: 128928 [2024-11-16 04:04:10,291 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 [2024-11-16 04:04:10,295 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 1037 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:10,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1655 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:04:10,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128928 states. [2024-11-16 04:04:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128928 to 121031. [2024-11-16 04:04:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121031 states, 121030 states have (on average 1.1134842601008015) internal successors, (134765), 121030 states have internal predecessors, (134765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121031 states to 121031 states and 134765 transitions. [2024-11-16 04:04:11,732 INFO L78 Accepts]: Start accepts. Automaton has 121031 states and 134765 transitions. Word has length 383 [2024-11-16 04:04:11,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:11,733 INFO L471 AbstractCegarLoop]: Abstraction has 121031 states and 134765 transitions. [2024-11-16 04:04:11,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:11,733 INFO L276 IsEmpty]: Start isEmpty. Operand 121031 states and 134765 transitions. [2024-11-16 04:04:11,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-16 04:04:11,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:11,751 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:04:11,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:04:11,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:11,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:11,752 INFO L85 PathProgramCache]: Analyzing trace with hash -970828179, now seen corresponding path program 1 times [2024-11-16 04:04:11,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525032962] [2024-11-16 04:04:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:11,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 293 proven. 111 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 04:04:13,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525032962] [2024-11-16 04:04:13,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525032962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:04:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539324252] [2024-11-16 04:04:13,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:13,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:04:13,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:04:13,319 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) [2024-11-16 04:04:13,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:04:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:13,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:04:13,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:04:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-16 04:04:13,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:04:13,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539324252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:13,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:04:13,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:04:13,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976886086] [2024-11-16 04:04:13,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:13,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:13,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:04:13,621 INFO L87 Difference]: Start difference. First operand 121031 states and 134765 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:17,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:17,078 INFO L93 Difference]: Finished difference Result 238905 states and 265925 transitions. [2024-11-16 04:04:17,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:17,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 392 [2024-11-16 04:04:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:17,251 INFO L225 Difference]: With dead ends: 238905 [2024-11-16 04:04:17,251 INFO L226 Difference]: Without dead ends: 118664 [2024-11-16 04:04:17,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:04:17,299 INFO L432 NwaCegarLoop]: 1348 mSDtfsCounter, 1113 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:17,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1429 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 04:04:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118664 states. [2024-11-16 04:04:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118664 to 117871. [2024-11-16 04:04:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117871 states, 117870 states have (on average 1.0857130737252905) internal successors, (127973), 117870 states have internal predecessors, (127973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117871 states to 117871 states and 127973 transitions. [2024-11-16 04:04:18,758 INFO L78 Accepts]: Start accepts. Automaton has 117871 states and 127973 transitions. Word has length 392 [2024-11-16 04:04:18,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:18,760 INFO L471 AbstractCegarLoop]: Abstraction has 117871 states and 127973 transitions. [2024-11-16 04:04:18,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 117871 states and 127973 transitions. [2024-11-16 04:04:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-16 04:04:18,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:18,799 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:04:19,337 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2024-11-16 04:04:19,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:04:19,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 04:04:19,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:19,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:19,348 INFO L85 PathProgramCache]: Analyzing trace with hash -21815282, now seen corresponding path program 1 times [2024-11-16 04:04:19,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:19,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268602501] [2024-11-16 04:04:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:19,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 744 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 04:04:19,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:19,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268602501] [2024-11-16 04:04:19,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268602501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:19,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:19,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162453638] [2024-11-16 04:04:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:19,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:19,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:19,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:19,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:19,667 INFO L87 Difference]: Start difference. First operand 117871 states and 127973 transitions. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:23,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:23,580 INFO L93 Difference]: Finished difference Result 269637 states and 294741 transitions. [2024-11-16 04:04:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:23,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 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 461 [2024-11-16 04:04:23,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:23,773 INFO L225 Difference]: With dead ends: 269637 [2024-11-16 04:04:23,774 INFO L226 Difference]: Without dead ends: 149404 [2024-11-16 04:04:24,036 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 [2024-11-16 04:04:24,036 INFO L432 NwaCegarLoop]: 1762 mSDtfsCounter, 779 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:24,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1909 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 04:04:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149404 states. [2024-11-16 04:04:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149404 to 147024. [2024-11-16 04:04:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147024 states, 147023 states have (on average 1.07292736510614) internal successors, (157745), 147023 states have internal predecessors, (157745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147024 states to 147024 states and 157745 transitions. [2024-11-16 04:04:25,873 INFO L78 Accepts]: Start accepts. Automaton has 147024 states and 157745 transitions. Word has length 461 [2024-11-16 04:04:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:25,874 INFO L471 AbstractCegarLoop]: Abstraction has 147024 states and 157745 transitions. [2024-11-16 04:04:25,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 147024 states and 157745 transitions. [2024-11-16 04:04:25,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-16 04:04:25,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:25,895 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:25,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:04:25,896 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:25,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:25,896 INFO L85 PathProgramCache]: Analyzing trace with hash 520996727, now seen corresponding path program 1 times [2024-11-16 04:04:25,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:25,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924920156] [2024-11-16 04:04:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-16 04:04:26,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:26,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924920156] [2024-11-16 04:04:26,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924920156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:26,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:26,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622073774] [2024-11-16 04:04:26,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:26,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:26,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:26,606 INFO L87 Difference]: Start difference. First operand 147024 states and 157745 transitions. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:30,473 INFO L93 Difference]: Finished difference Result 325573 states and 351595 transitions. [2024-11-16 04:04:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:30,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 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 469 [2024-11-16 04:04:30,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:30,694 INFO L225 Difference]: With dead ends: 325573 [2024-11-16 04:04:30,694 INFO L226 Difference]: Without dead ends: 179339 [2024-11-16 04:04:30,778 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 [2024-11-16 04:04:30,778 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 967 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 3355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:30,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 739 Invalid, 3355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [988 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 04:04:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179339 states. [2024-11-16 04:04:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179339 to 176168. [2024-11-16 04:04:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176168 states, 176167 states have (on average 1.0776990015156074) internal successors, (189855), 176167 states have internal predecessors, (189855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176168 states to 176168 states and 189855 transitions. [2024-11-16 04:04:33,317 INFO L78 Accepts]: Start accepts. Automaton has 176168 states and 189855 transitions. Word has length 469 [2024-11-16 04:04:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:33,317 INFO L471 AbstractCegarLoop]: Abstraction has 176168 states and 189855 transitions. [2024-11-16 04:04:33,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 176168 states and 189855 transitions. [2024-11-16 04:04:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-16 04:04:33,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:33,338 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:33,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:04:33,338 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:33,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash -289384784, now seen corresponding path program 1 times [2024-11-16 04:04:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:33,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216436306] [2024-11-16 04:04:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:33,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 904 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-16 04:04:34,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:34,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216436306] [2024-11-16 04:04:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216436306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:34,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:34,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:34,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130114962] [2024-11-16 04:04:34,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:34,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:34,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:34,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:34,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:34,472 INFO L87 Difference]: Start difference. First operand 176168 states and 189855 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:38,504 INFO L93 Difference]: Finished difference Result 353128 states and 380511 transitions. [2024-11-16 04:04:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:38,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 533 [2024-11-16 04:04:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:38,718 INFO L225 Difference]: With dead ends: 353128 [2024-11-16 04:04:38,718 INFO L226 Difference]: Without dead ends: 177750 [2024-11-16 04:04:38,795 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 [2024-11-16 04:04:38,795 INFO L432 NwaCegarLoop]: 1403 mSDtfsCounter, 937 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:38,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 1487 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 04:04:38,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177750 states. [2024-11-16 04:04:40,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177750 to 176161. [2024-11-16 04:04:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176161 states, 176160 states have (on average 1.0598773841961853) internal successors, (186708), 176160 states have internal predecessors, (186708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176161 states to 176161 states and 186708 transitions. [2024-11-16 04:04:41,294 INFO L78 Accepts]: Start accepts. Automaton has 176161 states and 186708 transitions. Word has length 533 [2024-11-16 04:04:41,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:41,295 INFO L471 AbstractCegarLoop]: Abstraction has 176161 states and 186708 transitions. [2024-11-16 04:04:41,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 176161 states and 186708 transitions. [2024-11-16 04:04:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2024-11-16 04:04:41,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:41,317 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 04:04:41,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:04:41,317 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:41,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2021594317, now seen corresponding path program 1 times [2024-11-16 04:04:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226845234] [2024-11-16 04:04:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:41,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 792 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2024-11-16 04:04:42,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226845234] [2024-11-16 04:04:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226845234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:42,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:42,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933175630] [2024-11-16 04:04:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:42,449 INFO L87 Difference]: Start difference. First operand 176161 states and 186708 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)