./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label00.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/Problem12_label00.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 48b75eefd299c5e358d6f7c99602002262fce20f93b0f1303552b05fdc1d7cc8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:51:47,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:51:47,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:51:47,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:51:47,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:51:47,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:51:47,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:51:47,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:51:47,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:51:47,837 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:51:47,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:51:47,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:51:47,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:51:47,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:51:47,839 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:51:47,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:51:47,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:51:47,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:51:47,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:51:47,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:51:47,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:51:47,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:51:47,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:51:47,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:51:47,845 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:51:47,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:51:47,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:51:47,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:51:47,849 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:51:47,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:51:47,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:51:47,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:51:47,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:47,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:51:47,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:51:47,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:51:47,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:51:47,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:51:47,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:51:47,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:51:47,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:51:47,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:51:47,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b75eefd299c5e358d6f7c99602002262fce20f93b0f1303552b05fdc1d7cc8 [2024-11-16 03:51:48,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:51:48,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:51:48,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:51:48,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:51:48,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:51:48,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label00.c [2024-11-16 03:51:49,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:51:49,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:51:49,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label00.c [2024-11-16 03:51:49,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0477a1b/c5c9cf4c6fa04eeab7566189175fee2d/FLAG124172ee6 [2024-11-16 03:51:50,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0477a1b/c5c9cf4c6fa04eeab7566189175fee2d [2024-11-16 03:51:50,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:51:50,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:51:50,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:50,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:51:50,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:51:50,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:50" (1/1) ... [2024-11-16 03:51:50,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381646c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:50, skipping insertion in model container [2024-11-16 03:51:50,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:50" (1/1) ... [2024-11-16 03:51:50,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:51:50,379 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/Problem12_label00.c[2236,2249] [2024-11-16 03:51:51,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:51,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:51:51,182 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/Problem12_label00.c[2236,2249] [2024-11-16 03:51:51,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:51,575 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:51:51,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51 WrapperNode [2024-11-16 03:51:51,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:51,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:51,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:51:51,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:51:51,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:51,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:51,952 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:51:51,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:51,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:51:51,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:51:51,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:51:51,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:51,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,215 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 03:51:52,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:51:52,481 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:51:52,481 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:51:52,482 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:51:52,483 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (1/1) ... [2024-11-16 03:51:52,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:52,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:52,515 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 03:51:52,517 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 03:51:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:51:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:51:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:51:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:51:52,707 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:51:52,710 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:51:57,098 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:51:57,099 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:51:57,099 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:51:57,269 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:51:57,269 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:51:57,309 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:51:57,309 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:51:57,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:57 BoogieIcfgContainer [2024-11-16 03:51:57,310 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:51:57,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:51:57,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:51:57,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:51:57,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:51:50" (1/3) ... [2024-11-16 03:51:57,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edc8e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:57, skipping insertion in model container [2024-11-16 03:51:57,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:51" (2/3) ... [2024-11-16 03:51:57,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edc8e0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:57, skipping insertion in model container [2024-11-16 03:51:57,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:57" (3/3) ... [2024-11-16 03:51:57,319 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label00.c [2024-11-16 03:51:57,334 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:51:57,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:51:57,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:51:57,429 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;@2b4033e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:51:57,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:51:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 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 03:51:57,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-16 03:51:57,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:57,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:57,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:57,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:57,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1023372390, now seen corresponding path program 1 times [2024-11-16 03:51:57,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:57,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936952705] [2024-11-16 03:51:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:57,706 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 03:51:57,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:57,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936952705] [2024-11-16 03:51:57,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936952705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:57,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:57,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179092247] [2024-11-16 03:51:57,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:57,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:57,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:57,745 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 03:52:00,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:00,935 INFO L93 Difference]: Finished difference Result 2394 states and 4635 transitions. [2024-11-16 03:52:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:00,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2024-11-16 03:52:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:00,968 INFO L225 Difference]: With dead ends: 2394 [2024-11-16 03:52:00,969 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:52:00,977 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 03:52:00,982 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 819 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:00,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 485 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:52:01,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:52:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:52:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.6372679045092837) internal successors, (2469), 1508 states have internal predecessors, (2469), 0 states have call successors, (0), 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 03:52:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2469 transitions. [2024-11-16 03:52:01,099 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2469 transitions. Word has length 17 [2024-11-16 03:52:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:01,100 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2469 transitions. [2024-11-16 03:52:01,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 03:52:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2469 transitions. [2024-11-16 03:52:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 03:52:01,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:01,104 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:52:01,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:52:01,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:01,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:01,105 INFO L85 PathProgramCache]: Analyzing trace with hash -26957893, now seen corresponding path program 1 times [2024-11-16 03:52:01,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:01,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898573521] [2024-11-16 03:52:01,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:01,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:01,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:01,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898573521] [2024-11-16 03:52:01,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898573521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:01,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:01,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658225579] [2024-11-16 03:52:01,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:01,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:01,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:01,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:01,343 INFO L87 Difference]: Start difference. First operand 1509 states and 2469 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:04,380 INFO L93 Difference]: Finished difference Result 4520 states and 7401 transitions. [2024-11-16 03:52:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:04,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-16 03:52:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:04,393 INFO L225 Difference]: With dead ends: 4520 [2024-11-16 03:52:04,393 INFO L226 Difference]: Without dead ends: 3013 [2024-11-16 03:52:04,397 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 03:52:04,398 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 753 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:04,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1162 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:52:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-11-16 03:52:04,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3013. [2024-11-16 03:52:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.5361885790172642) internal successors, (4627), 3012 states have internal predecessors, (4627), 0 states have call successors, (0), 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 03:52:04,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4627 transitions. [2024-11-16 03:52:04,448 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4627 transitions. Word has length 89 [2024-11-16 03:52:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:04,449 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4627 transitions. [2024-11-16 03:52:04,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4627 transitions. [2024-11-16 03:52:04,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 03:52:04,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:04,453 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:52:04,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:52:04,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:04,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:04,456 INFO L85 PathProgramCache]: Analyzing trace with hash -721297626, now seen corresponding path program 1 times [2024-11-16 03:52:04,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:04,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291003732] [2024-11-16 03:52:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:04,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291003732] [2024-11-16 03:52:04,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291003732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:04,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:04,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:04,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965465253] [2024-11-16 03:52:04,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:04,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:04,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:04,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:04,619 INFO L87 Difference]: Start difference. First operand 3013 states and 4627 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:07,248 INFO L93 Difference]: Finished difference Result 9032 states and 13875 transitions. [2024-11-16 03:52:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-16 03:52:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:07,271 INFO L225 Difference]: With dead ends: 9032 [2024-11-16 03:52:07,271 INFO L226 Difference]: Without dead ends: 6021 [2024-11-16 03:52:07,276 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 03:52:07,277 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 776 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:07,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 450 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:52:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-16 03:52:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2024-11-16 03:52:07,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 6020 states have (on average 1.372093023255814) internal successors, (8260), 6020 states have internal predecessors, (8260), 0 states have call successors, (0), 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 03:52:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 8260 transitions. [2024-11-16 03:52:07,397 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 8260 transitions. Word has length 92 [2024-11-16 03:52:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:07,401 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 8260 transitions. [2024-11-16 03:52:07,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 8260 transitions. [2024-11-16 03:52:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 03:52:07,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:07,405 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:52:07,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:52:07,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:07,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1930701748, now seen corresponding path program 1 times [2024-11-16 03:52:07,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:07,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934897141] [2024-11-16 03:52:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:07,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:07,832 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:07,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:07,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934897141] [2024-11-16 03:52:07,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934897141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:07,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:07,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:07,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757721501] [2024-11-16 03:52:07,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:07,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:07,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:07,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:07,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:07,836 INFO L87 Difference]: Start difference. First operand 6021 states and 8260 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:52:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:10,457 INFO L93 Difference]: Finished difference Result 12792 states and 17390 transitions. [2024-11-16 03:52:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:10,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-16 03:52:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:10,479 INFO L225 Difference]: With dead ends: 12792 [2024-11-16 03:52:10,479 INFO L226 Difference]: Without dead ends: 6773 [2024-11-16 03:52:10,488 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 03:52:10,489 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 885 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:10,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1175 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:10,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-16 03:52:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6773. [2024-11-16 03:52:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6773 states, 6772 states have (on average 1.3316597755463675) internal successors, (9018), 6772 states have internal predecessors, (9018), 0 states have call successors, (0), 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 03:52:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6773 states to 6773 states and 9018 transitions. [2024-11-16 03:52:10,592 INFO L78 Accepts]: Start accepts. Automaton has 6773 states and 9018 transitions. Word has length 99 [2024-11-16 03:52:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:10,594 INFO L471 AbstractCegarLoop]: Abstraction has 6773 states and 9018 transitions. [2024-11-16 03:52:10,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:52:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6773 states and 9018 transitions. [2024-11-16 03:52:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 03:52:10,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:10,597 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:10,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:52:10,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:10,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash -33457054, now seen corresponding path program 1 times [2024-11-16 03:52:10,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:10,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277081] [2024-11-16 03:52:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:10,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:10,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277081] [2024-11-16 03:52:10,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:10,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:10,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:10,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108662221] [2024-11-16 03:52:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:10,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:10,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:10,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:10,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:10,920 INFO L87 Difference]: Start difference. First operand 6773 states and 9018 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 03:52:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:14,076 INFO L93 Difference]: Finished difference Result 17345 states and 23816 transitions. [2024-11-16 03:52:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2024-11-16 03:52:14,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:14,111 INFO L225 Difference]: With dead ends: 17345 [2024-11-16 03:52:14,112 INFO L226 Difference]: Without dead ends: 11288 [2024-11-16 03:52:14,118 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 03:52:14,119 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 705 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:14,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 718 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:52:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11288 states. [2024-11-16 03:52:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11288 to 11285. [2024-11-16 03:52:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11285 states, 11284 states have (on average 1.2057780928748671) internal successors, (13606), 11284 states have internal predecessors, (13606), 0 states have call successors, (0), 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 03:52:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11285 states to 11285 states and 13606 transitions. [2024-11-16 03:52:14,309 INFO L78 Accepts]: Start accepts. Automaton has 11285 states and 13606 transitions. Word has length 158 [2024-11-16 03:52:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:14,309 INFO L471 AbstractCegarLoop]: Abstraction has 11285 states and 13606 transitions. [2024-11-16 03:52:14,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 03:52:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 11285 states and 13606 transitions. [2024-11-16 03:52:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-16 03:52:14,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:14,312 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 03:52:14,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:52:14,315 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:14,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash -584059432, now seen corresponding path program 1 times [2024-11-16 03:52:14,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:14,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748276266] [2024-11-16 03:52:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-16 03:52:14,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748276266] [2024-11-16 03:52:14,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748276266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:14,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:14,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246672287] [2024-11-16 03:52:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:14,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:14,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:14,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:14,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:14,545 INFO L87 Difference]: Start difference. First operand 11285 states and 13606 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:52:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:17,315 INFO L93 Difference]: Finished difference Result 27835 states and 34549 transitions. [2024-11-16 03:52:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:17,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2024-11-16 03:52:17,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:17,348 INFO L225 Difference]: With dead ends: 27835 [2024-11-16 03:52:17,348 INFO L226 Difference]: Without dead ends: 17304 [2024-11-16 03:52:17,357 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 03:52:17,358 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 849 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:17,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 314 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:52:17,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17304 states. [2024-11-16 03:52:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17304 to 16549. [2024-11-16 03:52:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16549 states, 16548 states have (on average 1.1984529852550156) internal successors, (19832), 16548 states have internal predecessors, (19832), 0 states have call successors, (0), 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 03:52:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16549 states to 16549 states and 19832 transitions. [2024-11-16 03:52:17,565 INFO L78 Accepts]: Start accepts. Automaton has 16549 states and 19832 transitions. Word has length 241 [2024-11-16 03:52:17,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:17,566 INFO L471 AbstractCegarLoop]: Abstraction has 16549 states and 19832 transitions. [2024-11-16 03:52:17,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:52:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 16549 states and 19832 transitions. [2024-11-16 03:52:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-16 03:52:17,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:17,570 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2024-11-16 03:52:17,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:52:17,570 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:17,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1222572192, now seen corresponding path program 1 times [2024-11-16 03:52:17,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:17,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989382555] [2024-11-16 03:52:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:17,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989382555] [2024-11-16 03:52:17,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989382555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:17,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:17,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:17,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689433765] [2024-11-16 03:52:17,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:17,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:17,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:17,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:17,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:17,793 INFO L87 Difference]: Start difference. First operand 16549 states and 19832 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 03:52:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:20,808 INFO L93 Difference]: Finished difference Result 40616 states and 49153 transitions. [2024-11-16 03:52:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:20,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 03:52:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:20,861 INFO L225 Difference]: With dead ends: 40616 [2024-11-16 03:52:20,861 INFO L226 Difference]: Without dead ends: 24821 [2024-11-16 03:52:20,878 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 03:52:20,882 INFO L432 NwaCegarLoop]: 1356 mSDtfsCounter, 673 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:20,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1366 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:52:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24821 states. [2024-11-16 03:52:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24821 to 23317. [2024-11-16 03:52:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23317 states, 23316 states have (on average 1.1963887459255447) internal successors, (27895), 23316 states have internal predecessors, (27895), 0 states have call successors, (0), 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 03:52:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23317 states to 23317 states and 27895 transitions. [2024-11-16 03:52:21,179 INFO L78 Accepts]: Start accepts. Automaton has 23317 states and 27895 transitions. Word has length 246 [2024-11-16 03:52:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:21,179 INFO L471 AbstractCegarLoop]: Abstraction has 23317 states and 27895 transitions. [2024-11-16 03:52:21,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 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 03:52:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 23317 states and 27895 transitions. [2024-11-16 03:52:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-16 03:52:21,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:21,184 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:21,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:52:21,184 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:21,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:21,186 INFO L85 PathProgramCache]: Analyzing trace with hash 822298525, now seen corresponding path program 1 times [2024-11-16 03:52:21,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:21,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943189504] [2024-11-16 03:52:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:21,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-16 03:52:21,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:21,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943189504] [2024-11-16 03:52:21,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943189504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:21,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:21,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:21,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120311594] [2024-11-16 03:52:21,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:21,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:21,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:21,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:21,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:21,436 INFO L87 Difference]: Start difference. First operand 23317 states and 27895 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:52:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:24,177 INFO L93 Difference]: Finished difference Result 57912 states and 70608 transitions. [2024-11-16 03:52:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:24,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 296 [2024-11-16 03:52:24,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:24,229 INFO L225 Difference]: With dead ends: 57912 [2024-11-16 03:52:24,229 INFO L226 Difference]: Without dead ends: 35349 [2024-11-16 03:52:24,252 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 03:52:24,253 INFO L432 NwaCegarLoop]: 1211 mSDtfsCounter, 760 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:24,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1221 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35349 states. [2024-11-16 03:52:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35349 to 35349. [2024-11-16 03:52:24,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35349 states, 35348 states have (on average 1.1608577571574064) internal successors, (41034), 35348 states have internal predecessors, (41034), 0 states have call successors, (0), 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 03:52:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35349 states to 35349 states and 41034 transitions. [2024-11-16 03:52:24,659 INFO L78 Accepts]: Start accepts. Automaton has 35349 states and 41034 transitions. Word has length 296 [2024-11-16 03:52:24,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:24,660 INFO L471 AbstractCegarLoop]: Abstraction has 35349 states and 41034 transitions. [2024-11-16 03:52:24,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 03:52:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 35349 states and 41034 transitions. [2024-11-16 03:52:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-16 03:52:24,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:24,665 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:24,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:52:24,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:24,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash 925198769, now seen corresponding path program 1 times [2024-11-16 03:52:24,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:24,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106383395] [2024-11-16 03:52:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-16 03:52:24,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:24,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106383395] [2024-11-16 03:52:24,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106383395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:24,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:24,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:24,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630651337] [2024-11-16 03:52:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:25,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:25,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:25,001 INFO L87 Difference]: Start difference. First operand 35349 states and 41034 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 03:52:27,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:27,700 INFO L93 Difference]: Finished difference Result 81224 states and 96038 transitions. [2024-11-16 03:52:27,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:27,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 304 [2024-11-16 03:52:27,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:27,764 INFO L225 Difference]: With dead ends: 81224 [2024-11-16 03:52:27,764 INFO L226 Difference]: Without dead ends: 46629 [2024-11-16 03:52:27,797 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 03:52:27,799 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 754 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:27,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1283 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:27,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46629 states. [2024-11-16 03:52:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46629 to 46629. [2024-11-16 03:52:28,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46629 states, 46628 states have (on average 1.1390151840096079) internal successors, (53110), 46628 states have internal predecessors, (53110), 0 states have call successors, (0), 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 03:52:28,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46629 states to 46629 states and 53110 transitions. [2024-11-16 03:52:28,371 INFO L78 Accepts]: Start accepts. Automaton has 46629 states and 53110 transitions. Word has length 304 [2024-11-16 03:52:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:28,372 INFO L471 AbstractCegarLoop]: Abstraction has 46629 states and 53110 transitions. [2024-11-16 03:52:28,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 03:52:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 46629 states and 53110 transitions. [2024-11-16 03:52:28,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-16 03:52:28,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:28,379 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:52:28,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:52:28,379 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:28,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1318692012, now seen corresponding path program 1 times [2024-11-16 03:52:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:28,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397264942] [2024-11-16 03:52:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:52:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397264942] [2024-11-16 03:52:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397264942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:28,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:28,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:28,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438690074] [2024-11-16 03:52:28,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:28,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:28,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:28,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:28,642 INFO L87 Difference]: Start difference. First operand 46629 states and 53110 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:31,469 INFO L93 Difference]: Finished difference Result 111304 states and 128622 transitions. [2024-11-16 03:52:31,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:31,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2024-11-16 03:52:31,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:31,538 INFO L225 Difference]: With dead ends: 111304 [2024-11-16 03:52:31,539 INFO L226 Difference]: Without dead ends: 61669 [2024-11-16 03:52:31,573 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 03:52:31,574 INFO L432 NwaCegarLoop]: 1280 mSDtfsCounter, 788 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:31,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1290 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61669 states. [2024-11-16 03:52:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61669 to 59413. [2024-11-16 03:52:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59413 states, 59412 states have (on average 1.1273143472699119) internal successors, (66976), 59412 states have internal predecessors, (66976), 0 states have call successors, (0), 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 03:52:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59413 states to 59413 states and 66976 transitions. [2024-11-16 03:52:32,341 INFO L78 Accepts]: Start accepts. Automaton has 59413 states and 66976 transitions. Word has length 351 [2024-11-16 03:52:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:32,341 INFO L471 AbstractCegarLoop]: Abstraction has 59413 states and 66976 transitions. [2024-11-16 03:52:32,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 59413 states and 66976 transitions. [2024-11-16 03:52:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-16 03:52:32,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:32,352 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:32,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:52:32,352 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1996565317, now seen corresponding path program 1 times [2024-11-16 03:52:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529223220] [2024-11-16 03:52:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-16 03:52:32,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529223220] [2024-11-16 03:52:32,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529223220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:32,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:32,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:32,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901790386] [2024-11-16 03:52:32,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:32,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:32,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:32,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:32,620 INFO L87 Difference]: Start difference. First operand 59413 states and 66976 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 03:52:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:35,320 INFO L93 Difference]: Finished difference Result 118072 states and 133193 transitions. [2024-11-16 03:52:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:35,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 414 [2024-11-16 03:52:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:35,382 INFO L225 Difference]: With dead ends: 118072 [2024-11-16 03:52:35,383 INFO L226 Difference]: Without dead ends: 59413 [2024-11-16 03:52:35,416 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 03:52:35,417 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 685 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:35,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 255 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:52:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59413 states. [2024-11-16 03:52:36,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59413 to 59413. [2024-11-16 03:52:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59413 states, 59412 states have (on average 1.121928229987208) internal successors, (66656), 59412 states have internal predecessors, (66656), 0 states have call successors, (0), 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 03:52:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59413 states to 59413 states and 66656 transitions. [2024-11-16 03:52:36,367 INFO L78 Accepts]: Start accepts. Automaton has 59413 states and 66656 transitions. Word has length 414 [2024-11-16 03:52:36,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:36,368 INFO L471 AbstractCegarLoop]: Abstraction has 59413 states and 66656 transitions. [2024-11-16 03:52:36,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 03:52:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 59413 states and 66656 transitions. [2024-11-16 03:52:36,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-16 03:52:36,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:36,566 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:36,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:52:36,567 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:36,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1822870712, now seen corresponding path program 1 times [2024-11-16 03:52:36,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:36,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726893845] [2024-11-16 03:52:36,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-16 03:52:37,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:37,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726893845] [2024-11-16 03:52:37,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726893845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:37,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:37,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:37,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453542981] [2024-11-16 03:52:37,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:37,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:37,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:37,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:37,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:37,028 INFO L87 Difference]: Start difference. First operand 59413 states and 66656 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 03:52:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:39,757 INFO L93 Difference]: Finished difference Result 120328 states and 134898 transitions. [2024-11-16 03:52:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:39,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 486 [2024-11-16 03:52:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:39,819 INFO L225 Difference]: With dead ends: 120328 [2024-11-16 03:52:39,819 INFO L226 Difference]: Without dead ends: 61669 [2024-11-16 03:52:39,833 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 03:52:39,833 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 710 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:39,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 231 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:52:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61669 states. [2024-11-16 03:52:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61669 to 58661. [2024-11-16 03:52:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58661 states, 58660 states have (on average 1.1173712921922945) internal successors, (65545), 58660 states have internal predecessors, (65545), 0 states have call successors, (0), 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 03:52:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58661 states to 58661 states and 65545 transitions. [2024-11-16 03:52:40,563 INFO L78 Accepts]: Start accepts. Automaton has 58661 states and 65545 transitions. Word has length 486 [2024-11-16 03:52:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:40,564 INFO L471 AbstractCegarLoop]: Abstraction has 58661 states and 65545 transitions. [2024-11-16 03:52:40,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 03:52:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 58661 states and 65545 transitions. [2024-11-16 03:52:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-16 03:52:40,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:40,578 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:52:40,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:52:40,578 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:40,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:40,579 INFO L85 PathProgramCache]: Analyzing trace with hash -292479100, now seen corresponding path program 1 times [2024-11-16 03:52:40,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:40,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805327298] [2024-11-16 03:52:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:40,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 03:52:41,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:41,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805327298] [2024-11-16 03:52:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805327298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:41,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:41,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:41,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813058081] [2024-11-16 03:52:41,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:41,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:41,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:41,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:41,184 INFO L87 Difference]: Start difference. First operand 58661 states and 65545 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 03:52:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:44,118 INFO L93 Difference]: Finished difference Result 162440 states and 182647 transitions. [2024-11-16 03:52:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 492 [2024-11-16 03:52:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:44,259 INFO L225 Difference]: With dead ends: 162440 [2024-11-16 03:52:44,259 INFO L226 Difference]: Without dead ends: 104533 [2024-11-16 03:52:44,279 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 03:52:44,280 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 544 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:44,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 522 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:44,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104533 states. [2024-11-16 03:52:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104533 to 102277. [2024-11-16 03:52:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102277 states, 102276 states have (on average 1.1057921702061089) internal successors, (113096), 102276 states have internal predecessors, (113096), 0 states have call successors, (0), 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 03:52:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102277 states to 102277 states and 113096 transitions. [2024-11-16 03:52:45,828 INFO L78 Accepts]: Start accepts. Automaton has 102277 states and 113096 transitions. Word has length 492 [2024-11-16 03:52:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:45,828 INFO L471 AbstractCegarLoop]: Abstraction has 102277 states and 113096 transitions. [2024-11-16 03:52:45,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 03:52:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 102277 states and 113096 transitions. [2024-11-16 03:52:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-16 03:52:45,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:45,843 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:52:45,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:52:45,843 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:45,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:45,844 INFO L85 PathProgramCache]: Analyzing trace with hash 879370107, now seen corresponding path program 1 times [2024-11-16 03:52:45,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:45,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983055115] [2024-11-16 03:52:45,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:45,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 431 proven. 231 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 03:52:47,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:47,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983055115] [2024-11-16 03:52:47,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983055115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:47,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917605682] [2024-11-16 03:52:47,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:47,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:47,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:47,036 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 03:52:47,038 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 03:52:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:47,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:52:47,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-16 03:52:47,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:52:47,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917605682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:47,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:52:47,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:52:47,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684299104] [2024-11-16 03:52:47,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:47,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:47,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:47,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:47,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:52:47,506 INFO L87 Difference]: Start difference. First operand 102277 states and 113096 transitions. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 03:52:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:50,578 INFO L93 Difference]: Finished difference Result 203800 states and 225433 transitions. [2024-11-16 03:52:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 523 [2024-11-16 03:52:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:50,693 INFO L225 Difference]: With dead ends: 203800 [2024-11-16 03:52:50,694 INFO L226 Difference]: Without dead ends: 102277 [2024-11-16 03:52:50,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:52:50,742 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 680 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:50,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1318 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:52:50,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102277 states. [2024-11-16 03:52:51,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102277 to 94005. [2024-11-16 03:52:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94005 states, 94004 states have (on average 1.0625186162290967) internal successors, (99881), 94004 states have internal predecessors, (99881), 0 states have call successors, (0), 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 03:52:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94005 states to 94005 states and 99881 transitions. [2024-11-16 03:52:51,952 INFO L78 Accepts]: Start accepts. Automaton has 94005 states and 99881 transitions. Word has length 523 [2024-11-16 03:52:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:51,952 INFO L471 AbstractCegarLoop]: Abstraction has 94005 states and 99881 transitions. [2024-11-16 03:52:51,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 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 03:52:51,952 INFO L276 IsEmpty]: Start isEmpty. Operand 94005 states and 99881 transitions. [2024-11-16 03:52:51,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-11-16 03:52:51,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:51,961 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:51,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:52:52,161 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,SelfDestructingSolverStorable13 [2024-11-16 03:52:52,162 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:52,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:52,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1448731031, now seen corresponding path program 1 times [2024-11-16 03:52:52,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:52,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296860065] [2024-11-16 03:52:52,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:52,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-16 03:52:52,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:52,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296860065] [2024-11-16 03:52:52,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296860065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:52,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51440362] [2024-11-16 03:52:52,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:52,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:52,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:52,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:52,404 INFO L87 Difference]: Start difference. First operand 94005 states and 99881 transitions. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 03:52:55,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:55,681 INFO L93 Difference]: Finished difference Result 221096 states and 235838 transitions. [2024-11-16 03:52:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 524 [2024-11-16 03:52:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:56,138 INFO L225 Difference]: With dead ends: 221096 [2024-11-16 03:52:56,138 INFO L226 Difference]: Without dead ends: 127845 [2024-11-16 03:52:56,170 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 03:52:56,171 INFO L432 NwaCegarLoop]: 1256 mSDtfsCounter, 665 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:56,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1266 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:52:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127845 states. [2024-11-16 03:52:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127845 to 121829. [2024-11-16 03:52:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121829 states, 121828 states have (on average 1.0572610565715599) internal successors, (128804), 121828 states have internal predecessors, (128804), 0 states have call successors, (0), 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 03:52:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121829 states to 121829 states and 128804 transitions. [2024-11-16 03:52:57,364 INFO L78 Accepts]: Start accepts. Automaton has 121829 states and 128804 transitions. Word has length 524 [2024-11-16 03:52:57,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:57,365 INFO L471 AbstractCegarLoop]: Abstraction has 121829 states and 128804 transitions. [2024-11-16 03:52:57,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 03:52:57,365 INFO L276 IsEmpty]: Start isEmpty. Operand 121829 states and 128804 transitions. [2024-11-16 03:52:57,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-16 03:52:57,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:57,374 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2024-11-16 03:52:57,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:52:57,374 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:57,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash -346944127, now seen corresponding path program 1 times [2024-11-16 03:52:57,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:57,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613569117] [2024-11-16 03:52:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 537 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-16 03:52:58,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613569117] [2024-11-16 03:52:58,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613569117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:58,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:58,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:58,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133777910] [2024-11-16 03:52:58,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:58,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:58,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:58,387 INFO L87 Difference]: Start difference. First operand 121829 states and 128804 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 03:53:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:01,354 INFO L93 Difference]: Finished difference Result 248168 states and 262217 transitions. [2024-11-16 03:53:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 551 [2024-11-16 03:53:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:01,501 INFO L225 Difference]: With dead ends: 248168 [2024-11-16 03:53:01,501 INFO L226 Difference]: Without dead ends: 127093 [2024-11-16 03:53:01,568 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 03:53:01,569 INFO L432 NwaCegarLoop]: 1181 mSDtfsCounter, 687 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:01,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1189 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:53:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127093 states. [2024-11-16 03:53:02,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127093 to 114309. [2024-11-16 03:53:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114309 states, 114308 states have (on average 1.038168807082619) internal successors, (118671), 114308 states have internal predecessors, (118671), 0 states have call successors, (0), 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 03:53:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114309 states to 114309 states and 118671 transitions. [2024-11-16 03:53:02,962 INFO L78 Accepts]: Start accepts. Automaton has 114309 states and 118671 transitions. Word has length 551 [2024-11-16 03:53:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:02,962 INFO L471 AbstractCegarLoop]: Abstraction has 114309 states and 118671 transitions. [2024-11-16 03:53:02,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 03:53:02,962 INFO L276 IsEmpty]: Start isEmpty. Operand 114309 states and 118671 transitions. [2024-11-16 03:53:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-11-16 03:53:02,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:02,972 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:02,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:53:02,973 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:02,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1460968808, now seen corresponding path program 1 times [2024-11-16 03:53:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683907225] [2024-11-16 03:53:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-16 03:53:04,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683907225] [2024-11-16 03:53:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683907225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:04,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:04,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609284311] [2024-11-16 03:53:04,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:04,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:04,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:04,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:04,584 INFO L87 Difference]: Start difference. First operand 114309 states and 118671 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)