./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.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 2415b069e76079d7377abcf176cebf6165f82bbd9ec5224d7f58a06f904590c0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:02:28,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:02:28,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 01:02:28,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:02:28,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:02:28,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:02:28,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:02:28,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:02:28,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:02:28,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:02:28,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:02:28,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:02:28,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:02:28,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:02:28,605 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:02:28,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:02:28,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:02:28,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:02:28,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:02:28,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:02:28,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:02:28,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:02:28,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:02:28,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:02:28,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:02:28,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:02:28,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:02:28,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:02:28,611 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:02:28,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:02:28,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:02:28,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:02:28,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:02:28,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:02:28,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:02:28,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:02:28,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2415b069e76079d7377abcf176cebf6165f82bbd9ec5224d7f58a06f904590c0 [2024-11-10 01:02:28,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:02:28,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:02:28,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:02:28,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:02:28,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:02:28,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-10 01:02:30,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:02:30,583 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:02:30,585 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-10 01:02:30,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e965e87/8ef944e3ceaa4f86868cf93d99995034/FLAG9fd97d392 [2024-11-10 01:02:30,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e965e87/8ef944e3ceaa4f86868cf93d99995034 [2024-11-10 01:02:30,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:02:30,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:02:30,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:02:30,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:02:30,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:02:30,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:30" (1/1) ... [2024-11-10 01:02:30,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466fdaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:30, skipping insertion in model container [2024-11-10 01:02:30,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:30" (1/1) ... [2024-11-10 01:02:30,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:02:31,011 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[20528,20541] [2024-11-10 01:02:31,060 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[28276,28289] [2024-11-10 01:02:31,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:02:31,509 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:02:31,548 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[20528,20541] [2024-11-10 01:02:31,556 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/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c[28276,28289] [2024-11-10 01:02:31,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:02:31,858 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:02:31,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31 WrapperNode [2024-11-10 01:02:31,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:02:31,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:02:31,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:02:31,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:02:31,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:31,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,225 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5215 [2024-11-10 01:02:32,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:02:32,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:02:32,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:02:32,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:02:32,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,409 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]. [2024-11-10 01:02:32,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:02:32,638 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:02:32,639 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:02:32,639 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:02:32,640 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (1/1) ... [2024-11-10 01:02:32,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:02:32,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:02:32,667 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) [2024-11-10 01:02:32,669 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 [2024-11-10 01:02:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:02:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:02:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:02:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:02:32,795 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:02:32,797 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:02:37,085 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5255: havoc calculate_output3_#t~ret47#1; [2024-11-10 01:02:37,085 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2286: havoc calculate_output_#t~ret45#1; [2024-11-10 01:02:37,086 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3765: havoc calculate_output2_#t~ret46#1; [2024-11-10 01:02:37,325 INFO L? ?]: Removed 2091 outVars from TransFormulas that were not future-live. [2024-11-10 01:02:37,326 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:02:37,374 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:02:37,375 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:02:37,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:02:37 BoogieIcfgContainer [2024-11-10 01:02:37,375 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:02:37,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:02:37,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:02:37,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:02:37,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:02:30" (1/3) ... [2024-11-10 01:02:37,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3ccec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:37, skipping insertion in model container [2024-11-10 01:02:37,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:31" (2/3) ... [2024-11-10 01:02:37,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3ccec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:37, skipping insertion in model container [2024-11-10 01:02:37,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:02:37" (3/3) ... [2024-11-10 01:02:37,385 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label09.c [2024-11-10 01:02:37,398 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:02:37,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:02:37,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:02:37,482 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;@5edb774f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:02:37,483 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:02:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 937 states, 934 states have (on average 2.6252676659528906) internal successors, (2452), 936 states have internal predecessors, (2452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-10 01:02:37,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:37,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:37,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:37,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:37,504 INFO L85 PathProgramCache]: Analyzing trace with hash -685889018, now seen corresponding path program 1 times [2024-11-10 01:02:37,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:37,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020761089] [2024-11-10 01:02:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:37,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:37,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:37,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020761089] [2024-11-10 01:02:37,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020761089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:37,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:37,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 01:02:37,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962834151] [2024-11-10 01:02:37,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:37,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 01:02:37,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 01:02:37,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:02:37,771 INFO L87 Difference]: Start difference. First operand has 937 states, 934 states have (on average 2.6252676659528906) internal successors, (2452), 936 states have internal predecessors, (2452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:37,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:37,854 INFO L93 Difference]: Finished difference Result 1814 states and 4792 transitions. [2024-11-10 01:02:37,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 01:02:37,863 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-10 01:02:37,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:37,878 INFO L225 Difference]: With dead ends: 1814 [2024-11-10 01:02:37,878 INFO L226 Difference]: Without dead ends: 869 [2024-11-10 01:02:37,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:02:37,887 INFO L432 NwaCegarLoop]: 2381 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:37,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-10 01:02:37,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-11-10 01:02:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 867 states have (on average 2.6724336793540946) internal successors, (2317), 868 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 2317 transitions. [2024-11-10 01:02:37,961 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 2317 transitions. Word has length 30 [2024-11-10 01:02:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:37,962 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 2317 transitions. [2024-11-10 01:02:37,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 2317 transitions. [2024-11-10 01:02:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-10 01:02:37,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:37,967 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:37,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:02:37,967 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:37,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:37,968 INFO L85 PathProgramCache]: Analyzing trace with hash -752895771, now seen corresponding path program 1 times [2024-11-10 01:02:37,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:37,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406421441] [2024-11-10 01:02:37,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:37,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406421441] [2024-11-10 01:02:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406421441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:38,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:02:38,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364357841] [2024-11-10 01:02:38,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:38,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:02:38,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:38,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:02:38,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:02:38,187 INFO L87 Difference]: Start difference. First operand 869 states and 2317 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:38,301 INFO L93 Difference]: Finished difference Result 930 states and 2411 transitions. [2024-11-10 01:02:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:02:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-10 01:02:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:38,305 INFO L225 Difference]: With dead ends: 930 [2024-11-10 01:02:38,305 INFO L226 Difference]: Without dead ends: 869 [2024-11-10 01:02:38,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:02:38,307 INFO L432 NwaCegarLoop]: 2315 mSDtfsCounter, 0 mSDsluCounter, 6890 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9205 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:38,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9205 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-10 01:02:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2024-11-10 01:02:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 867 states have (on average 2.6147635524798156) internal successors, (2267), 868 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 2267 transitions. [2024-11-10 01:02:38,385 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 2267 transitions. Word has length 30 [2024-11-10 01:02:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:38,386 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 2267 transitions. [2024-11-10 01:02:38,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 2267 transitions. [2024-11-10 01:02:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-10 01:02:38,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:38,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:38,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 01:02:38,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:38,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 883553435, now seen corresponding path program 1 times [2024-11-10 01:02:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:38,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254718723] [2024-11-10 01:02:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:38,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:38,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:38,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254718723] [2024-11-10 01:02:38,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254718723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:38,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:38,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:38,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865632513] [2024-11-10 01:02:38,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:38,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:02:38,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:02:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:02:38,613 INFO L87 Difference]: Start difference. First operand 869 states and 2267 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:46,017 INFO L93 Difference]: Finished difference Result 3128 states and 8620 transitions. [2024-11-10 01:02:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:02:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-10 01:02:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:46,027 INFO L225 Difference]: With dead ends: 3128 [2024-11-10 01:02:46,027 INFO L226 Difference]: Without dead ends: 2373 [2024-11-10 01:02:46,030 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 [2024-11-10 01:02:46,031 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 4519 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7874 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4519 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 9119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 7874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:46,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4519 Valid, 864 Invalid, 9119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 7874 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-10 01:02:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2024-11-10 01:02:46,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2373. [2024-11-10 01:02:46,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2371 states have (on average 2.363981442429355) internal successors, (5605), 2372 states have internal predecessors, (5605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 5605 transitions. [2024-11-10 01:02:46,117 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 5605 transitions. Word has length 69 [2024-11-10 01:02:46,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:46,118 INFO L471 AbstractCegarLoop]: Abstraction has 2373 states and 5605 transitions. [2024-11-10 01:02:46,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 5605 transitions. [2024-11-10 01:02:46,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 01:02:46,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:46,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:46,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 01:02:46,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:46,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1903427819, now seen corresponding path program 1 times [2024-11-10 01:02:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:46,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367069344] [2024-11-10 01:02:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:46,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:46,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367069344] [2024-11-10 01:02:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367069344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:46,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:46,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:46,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165041104] [2024-11-10 01:02:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:46,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:46,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:46,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:46,341 INFO L87 Difference]: Start difference. First operand 2373 states and 5605 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:46,697 INFO L93 Difference]: Finished difference Result 3171 states and 6865 transitions. [2024-11-10 01:02:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 01:02:46,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-10 01:02:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:46,717 INFO L225 Difference]: With dead ends: 3171 [2024-11-10 01:02:46,717 INFO L226 Difference]: Without dead ends: 3114 [2024-11-10 01:02:46,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-10 01:02:46,721 INFO L432 NwaCegarLoop]: 2263 mSDtfsCounter, 16322 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16322 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:46,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16322 Valid, 5664 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2024-11-10 01:02:46,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 2427. [2024-11-10 01:02:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2425 states have (on average 2.3468041237113404) internal successors, (5691), 2426 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 5691 transitions. [2024-11-10 01:02:46,784 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 5691 transitions. Word has length 79 [2024-11-10 01:02:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:46,784 INFO L471 AbstractCegarLoop]: Abstraction has 2427 states and 5691 transitions. [2024-11-10 01:02:46,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 5691 transitions. [2024-11-10 01:02:46,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 01:02:46,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:46,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:46,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 01:02:46,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:46,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1827426509, now seen corresponding path program 1 times [2024-11-10 01:02:46,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:46,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340699176] [2024-11-10 01:02:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:46,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340699176] [2024-11-10 01:02:47,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340699176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942624563] [2024-11-10 01:02:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:47,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:47,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:47,189 INFO L87 Difference]: Start difference. First operand 2427 states and 5691 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:47,472 INFO L93 Difference]: Finished difference Result 2541 states and 5869 transitions. [2024-11-10 01:02:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:47,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 01:02:47,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:47,482 INFO L225 Difference]: With dead ends: 2541 [2024-11-10 01:02:47,482 INFO L226 Difference]: Without dead ends: 2430 [2024-11-10 01:02:47,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:02:47,485 INFO L432 NwaCegarLoop]: 2258 mSDtfsCounter, 2243 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:47,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 2874 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:47,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2024-11-10 01:02:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2427. [2024-11-10 01:02:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2425 states have (on average 2.3463917525773197) internal successors, (5690), 2426 states have internal predecessors, (5690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 5690 transitions. [2024-11-10 01:02:47,542 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 5690 transitions. Word has length 81 [2024-11-10 01:02:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:47,542 INFO L471 AbstractCegarLoop]: Abstraction has 2427 states and 5690 transitions. [2024-11-10 01:02:47,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 5690 transitions. [2024-11-10 01:02:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 01:02:47,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:47,544 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:47,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 01:02:47,545 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:47,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:47,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1755501160, now seen corresponding path program 1 times [2024-11-10 01:02:47,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:47,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980150696] [2024-11-10 01:02:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:47,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980150696] [2024-11-10 01:02:47,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980150696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:47,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:47,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096368535] [2024-11-10 01:02:47,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:47,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:47,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:47,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:47,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:47,637 INFO L87 Difference]: Start difference. First operand 2427 states and 5690 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:47,671 INFO L93 Difference]: Finished difference Result 2637 states and 6020 transitions. [2024-11-10 01:02:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:47,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-10 01:02:47,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:47,682 INFO L225 Difference]: With dead ends: 2637 [2024-11-10 01:02:47,682 INFO L226 Difference]: Without dead ends: 2526 [2024-11-10 01:02:47,683 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 [2024-11-10 01:02:47,686 INFO L432 NwaCegarLoop]: 2273 mSDtfsCounter, 2182 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:47,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 2358 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:47,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2024-11-10 01:02:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2523. [2024-11-10 01:02:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2521 states have (on average 2.3165410551368506) internal successors, (5840), 2522 states have internal predecessors, (5840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 5840 transitions. [2024-11-10 01:02:47,779 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 5840 transitions. Word has length 82 [2024-11-10 01:02:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:47,779 INFO L471 AbstractCegarLoop]: Abstraction has 2523 states and 5840 transitions. [2024-11-10 01:02:47,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 5840 transitions. [2024-11-10 01:02:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:47,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:47,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:47,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 01:02:47,781 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1519393231, now seen corresponding path program 1 times [2024-11-10 01:02:47,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:47,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410705246] [2024-11-10 01:02:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:47,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:47,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410705246] [2024-11-10 01:02:47,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410705246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:47,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:47,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544636727] [2024-11-10 01:02:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:47,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:47,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:47,857 INFO L87 Difference]: Start difference. First operand 2523 states and 5840 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:47,900 INFO L93 Difference]: Finished difference Result 2740 states and 6180 transitions. [2024-11-10 01:02:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:47,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:47,910 INFO L225 Difference]: With dead ends: 2740 [2024-11-10 01:02:47,911 INFO L226 Difference]: Without dead ends: 2629 [2024-11-10 01:02:47,912 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 [2024-11-10 01:02:47,913 INFO L432 NwaCegarLoop]: 2341 mSDtfsCounter, 2200 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:47,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 2432 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2024-11-10 01:02:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2626. [2024-11-10 01:02:47,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2624 states have (on average 2.2865853658536586) internal successors, (6000), 2625 states have internal predecessors, (6000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 6000 transitions. [2024-11-10 01:02:47,975 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 6000 transitions. Word has length 83 [2024-11-10 01:02:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:47,976 INFO L471 AbstractCegarLoop]: Abstraction has 2626 states and 6000 transitions. [2024-11-10 01:02:47,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 6000 transitions. [2024-11-10 01:02:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:47,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:47,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:47,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 01:02:47,979 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:47,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1667474161, now seen corresponding path program 1 times [2024-11-10 01:02:47,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:47,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232294547] [2024-11-10 01:02:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:48,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:48,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232294547] [2024-11-10 01:02:48,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232294547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:48,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:48,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044813425] [2024-11-10 01:02:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:48,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:48,045 INFO L87 Difference]: Start difference. First operand 2626 states and 6000 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:48,087 INFO L93 Difference]: Finished difference Result 3216 states and 6922 transitions. [2024-11-10 01:02:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:48,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:48,098 INFO L225 Difference]: With dead ends: 3216 [2024-11-10 01:02:48,098 INFO L226 Difference]: Without dead ends: 2909 [2024-11-10 01:02:48,099 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 [2024-11-10 01:02:48,101 INFO L432 NwaCegarLoop]: 2343 mSDtfsCounter, 2198 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2198 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:48,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2198 Valid, 2438 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2024-11-10 01:02:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 2906. [2024-11-10 01:02:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2904 states have (on average 2.2148760330578514) internal successors, (6432), 2905 states have internal predecessors, (6432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 6432 transitions. [2024-11-10 01:02:48,178 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 6432 transitions. Word has length 83 [2024-11-10 01:02:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:48,178 INFO L471 AbstractCegarLoop]: Abstraction has 2906 states and 6432 transitions. [2024-11-10 01:02:48,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 6432 transitions. [2024-11-10 01:02:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:48,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:48,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:48,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 01:02:48,180 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:48,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1854952335, now seen corresponding path program 1 times [2024-11-10 01:02:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:48,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588578683] [2024-11-10 01:02:48,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:48,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:48,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:48,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588578683] [2024-11-10 01:02:48,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588578683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:48,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:48,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:48,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131713932] [2024-11-10 01:02:48,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:48,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:48,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:48,248 INFO L87 Difference]: Start difference. First operand 2906 states and 6432 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:48,297 INFO L93 Difference]: Finished difference Result 4032 states and 8176 transitions. [2024-11-10 01:02:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:48,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:48,309 INFO L225 Difference]: With dead ends: 4032 [2024-11-10 01:02:48,310 INFO L226 Difference]: Without dead ends: 3445 [2024-11-10 01:02:48,312 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 [2024-11-10 01:02:48,312 INFO L432 NwaCegarLoop]: 2331 mSDtfsCounter, 2194 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:48,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 2434 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:48,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-11-10 01:02:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3442. [2024-11-10 01:02:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3440 states have (on average 2.1069767441860465) internal successors, (7248), 3441 states have internal predecessors, (7248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 7248 transitions. [2024-11-10 01:02:48,394 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 7248 transitions. Word has length 83 [2024-11-10 01:02:48,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:48,394 INFO L471 AbstractCegarLoop]: Abstraction has 3442 states and 7248 transitions. [2024-11-10 01:02:48,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 7248 transitions. [2024-11-10 01:02:48,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:48,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:48,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:48,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 01:02:48,396 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:48,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash 853542607, now seen corresponding path program 1 times [2024-11-10 01:02:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659720930] [2024-11-10 01:02:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:48,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:48,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:48,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659720930] [2024-11-10 01:02:48,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659720930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:48,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:48,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:48,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148492699] [2024-11-10 01:02:48,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:48,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:48,462 INFO L87 Difference]: Start difference. First operand 3442 states and 7248 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:48,529 INFO L93 Difference]: Finished difference Result 5592 states and 10540 transitions. [2024-11-10 01:02:48,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:48,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:48,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:48,540 INFO L225 Difference]: With dead ends: 5592 [2024-11-10 01:02:48,540 INFO L226 Difference]: Without dead ends: 4469 [2024-11-10 01:02:48,543 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 [2024-11-10 01:02:48,544 INFO L432 NwaCegarLoop]: 2329 mSDtfsCounter, 2192 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:48,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 2436 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:48,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2024-11-10 01:02:48,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 4466. [2024-11-10 01:02:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4464 states have (on average 1.967741935483871) internal successors, (8784), 4465 states have internal predecessors, (8784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 8784 transitions. [2024-11-10 01:02:48,654 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 8784 transitions. Word has length 83 [2024-11-10 01:02:48,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:48,654 INFO L471 AbstractCegarLoop]: Abstraction has 4466 states and 8784 transitions. [2024-11-10 01:02:48,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 8784 transitions. [2024-11-10 01:02:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:48,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:48,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:48,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 01:02:48,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:48,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash 839092751, now seen corresponding path program 1 times [2024-11-10 01:02:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:48,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921029360] [2024-11-10 01:02:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:48,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:48,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921029360] [2024-11-10 01:02:48,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921029360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:48,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:48,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:48,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906209682] [2024-11-10 01:02:48,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:48,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:48,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:48,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:48,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:48,723 INFO L87 Difference]: Start difference. First operand 4466 states and 8784 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:48,818 INFO L93 Difference]: Finished difference Result 8568 states and 14980 transitions. [2024-11-10 01:02:48,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:48,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:48,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:48,829 INFO L225 Difference]: With dead ends: 8568 [2024-11-10 01:02:48,829 INFO L226 Difference]: Without dead ends: 6421 [2024-11-10 01:02:48,833 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 [2024-11-10 01:02:48,833 INFO L432 NwaCegarLoop]: 2327 mSDtfsCounter, 2190 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:48,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 2438 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6421 states. [2024-11-10 01:02:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6421 to 6418. [2024-11-10 01:02:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6418 states, 6416 states have (on average 1.8179551122194513) internal successors, (11664), 6417 states have internal predecessors, (11664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6418 states to 6418 states and 11664 transitions. [2024-11-10 01:02:48,948 INFO L78 Accepts]: Start accepts. Automaton has 6418 states and 11664 transitions. Word has length 83 [2024-11-10 01:02:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:48,948 INFO L471 AbstractCegarLoop]: Abstraction has 6418 states and 11664 transitions. [2024-11-10 01:02:48,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 6418 states and 11664 transitions. [2024-11-10 01:02:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:48,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:48,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:48,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 01:02:48,951 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:48,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1364271793, now seen corresponding path program 1 times [2024-11-10 01:02:48,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:48,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460071799] [2024-11-10 01:02:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:48,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:48,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460071799] [2024-11-10 01:02:48,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460071799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:48,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:48,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938036615] [2024-11-10 01:02:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:48,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:48,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:49,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:49,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:49,000 INFO L87 Difference]: Start difference. First operand 6418 states and 11664 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:49,115 INFO L93 Difference]: Finished difference Result 14232 states and 23284 transitions. [2024-11-10 01:02:49,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:49,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:49,133 INFO L225 Difference]: With dead ends: 14232 [2024-11-10 01:02:49,133 INFO L226 Difference]: Without dead ends: 10133 [2024-11-10 01:02:49,140 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 [2024-11-10 01:02:49,140 INFO L432 NwaCegarLoop]: 2325 mSDtfsCounter, 2188 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2188 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:49,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2188 Valid, 2440 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10133 states. [2024-11-10 01:02:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10133 to 10130. [2024-11-10 01:02:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10130 states, 10128 states have (on average 1.6824644549763033) internal successors, (17040), 10129 states have internal predecessors, (17040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10130 states to 10130 states and 17040 transitions. [2024-11-10 01:02:49,396 INFO L78 Accepts]: Start accepts. Automaton has 10130 states and 17040 transitions. Word has length 83 [2024-11-10 01:02:49,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:49,397 INFO L471 AbstractCegarLoop]: Abstraction has 10130 states and 17040 transitions. [2024-11-10 01:02:49,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,397 INFO L276 IsEmpty]: Start isEmpty. Operand 10130 states and 17040 transitions. [2024-11-10 01:02:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:49,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:49,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:49,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 01:02:49,398 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:49,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1888548848, now seen corresponding path program 1 times [2024-11-10 01:02:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:49,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424395392] [2024-11-10 01:02:49,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:49,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:49,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424395392] [2024-11-10 01:02:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424395392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:49,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:02:49,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687636785] [2024-11-10 01:02:49,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:49,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:02:49,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:02:49,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:02:49,612 INFO L87 Difference]: Start difference. First operand 10130 states and 17040 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:49,753 INFO L93 Difference]: Finished difference Result 10517 states and 17554 transitions. [2024-11-10 01:02:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:02:49,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:49,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:49,771 INFO L225 Difference]: With dead ends: 10517 [2024-11-10 01:02:49,771 INFO L226 Difference]: Without dead ends: 10514 [2024-11-10 01:02:49,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:02:49,776 INFO L432 NwaCegarLoop]: 2261 mSDtfsCounter, 0 mSDsluCounter, 13553 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15814 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:49,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15814 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2024-11-10 01:02:49,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 10514. [2024-11-10 01:02:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10514 states, 10512 states have (on average 1.6544901065449011) internal successors, (17392), 10513 states have internal predecessors, (17392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10514 states to 10514 states and 17392 transitions. [2024-11-10 01:02:49,958 INFO L78 Accepts]: Start accepts. Automaton has 10514 states and 17392 transitions. Word has length 83 [2024-11-10 01:02:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:49,958 INFO L471 AbstractCegarLoop]: Abstraction has 10514 states and 17392 transitions. [2024-11-10 01:02:49,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 10514 states and 17392 transitions. [2024-11-10 01:02:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:02:49,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:49,959 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:49,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 01:02:49,960 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:49,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:49,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2137026639, now seen corresponding path program 1 times [2024-11-10 01:02:49,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:49,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537704556] [2024-11-10 01:02:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:49,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:02:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:50,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537704556] [2024-11-10 01:02:50,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537704556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:50,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:50,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:02:50,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532841779] [2024-11-10 01:02:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:50,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:02:50,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:50,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:02:50,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:02:50,014 INFO L87 Difference]: Start difference. First operand 10514 states and 17392 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:50,291 INFO L93 Difference]: Finished difference Result 26136 states and 39796 transitions. [2024-11-10 01:02:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:02:50,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:02:50,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:50,313 INFO L225 Difference]: With dead ends: 26136 [2024-11-10 01:02:50,314 INFO L226 Difference]: Without dead ends: 17941 [2024-11-10 01:02:50,319 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 [2024-11-10 01:02:50,320 INFO L432 NwaCegarLoop]: 2341 mSDtfsCounter, 2196 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:50,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 2440 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:02:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17941 states. [2024-11-10 01:02:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17941 to 17938. [2024-11-10 01:02:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17938 states, 17936 states have (on average 1.5459411239964318) internal successors, (27728), 17937 states have internal predecessors, (27728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17938 states to 17938 states and 27728 transitions. [2024-11-10 01:02:50,636 INFO L78 Accepts]: Start accepts. Automaton has 17938 states and 27728 transitions. Word has length 83 [2024-11-10 01:02:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:50,636 INFO L471 AbstractCegarLoop]: Abstraction has 17938 states and 27728 transitions. [2024-11-10 01:02:50,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 17938 states and 27728 transitions. [2024-11-10 01:02:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:50,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:50,641 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:02:50,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 01:02:50,642 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:50,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1954013601, now seen corresponding path program 1 times [2024-11-10 01:02:50,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:50,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514551485] [2024-11-10 01:02:50,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:50,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 01:02:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:50,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514551485] [2024-11-10 01:02:50,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514551485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:50,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:50,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:50,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259490456] [2024-11-10 01:02:50,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:50,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:50,835 INFO L87 Difference]: Start difference. First operand 17938 states and 27728 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:52,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:52,425 INFO L93 Difference]: Finished difference Result 125930 states and 181152 transitions. [2024-11-10 01:02:52,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:52,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 108 [2024-11-10 01:02:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:52,644 INFO L225 Difference]: With dead ends: 125930 [2024-11-10 01:02:52,644 INFO L226 Difference]: Without dead ends: 114919 [2024-11-10 01:02:52,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:52,682 INFO L432 NwaCegarLoop]: 2358 mSDtfsCounter, 13990 mSDsluCounter, 3606 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13990 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:52,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13990 Valid, 5964 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114919 states. [2024-11-10 01:02:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114919 to 31314. [2024-11-10 01:02:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31314 states, 31312 states have (on average 1.4864588656106286) internal successors, (46544), 31313 states have internal predecessors, (46544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31314 states to 31314 states and 46544 transitions. [2024-11-10 01:02:53,955 INFO L78 Accepts]: Start accepts. Automaton has 31314 states and 46544 transitions. Word has length 108 [2024-11-10 01:02:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:53,955 INFO L471 AbstractCegarLoop]: Abstraction has 31314 states and 46544 transitions. [2024-11-10 01:02:53,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 31314 states and 46544 transitions. [2024-11-10 01:02:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:53,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:53,961 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:02:53,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 01:02:53,962 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:53,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1232853791, now seen corresponding path program 1 times [2024-11-10 01:02:53,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:53,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327916704] [2024-11-10 01:02:53,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:53,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 01:02:54,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327916704] [2024-11-10 01:02:54,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327916704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:54,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:54,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:54,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782458749] [2024-11-10 01:02:54,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:54,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:54,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:54,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:54,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:54,139 INFO L87 Difference]: Start difference. First operand 31314 states and 46544 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:56,182 INFO L93 Difference]: Finished difference Result 141546 states and 203232 transitions. [2024-11-10 01:02:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 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 108 [2024-11-10 01:02:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:56,391 INFO L225 Difference]: With dead ends: 141546 [2024-11-10 01:02:56,391 INFO L226 Difference]: Without dead ends: 125927 [2024-11-10 01:02:56,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:56,427 INFO L432 NwaCegarLoop]: 2359 mSDtfsCounter, 13987 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13987 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:56,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13987 Valid, 5943 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125927 states. [2024-11-10 01:02:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125927 to 52434. [2024-11-10 01:02:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52434 states, 52432 states have (on average 1.4540738480317363) internal successors, (76240), 52433 states have internal predecessors, (76240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52434 states to 52434 states and 76240 transitions. [2024-11-10 01:02:58,586 INFO L78 Accepts]: Start accepts. Automaton has 52434 states and 76240 transitions. Word has length 108 [2024-11-10 01:02:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:58,586 INFO L471 AbstractCegarLoop]: Abstraction has 52434 states and 76240 transitions. [2024-11-10 01:02:58,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 52434 states and 76240 transitions. [2024-11-10 01:02:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:58,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:58,594 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:02:58,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 01:02:58,595 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:58,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2005394591, now seen corresponding path program 1 times [2024-11-10 01:02:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424748625] [2024-11-10 01:02:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 01:02:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:58,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424748625] [2024-11-10 01:02:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424748625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363784337] [2024-11-10 01:02:58,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:58,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:58,786 INFO L87 Difference]: Start difference. First operand 52434 states and 76240 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:03:01,602 INFO L93 Difference]: Finished difference Result 157162 states and 225248 transitions. [2024-11-10 01:03:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:03:01,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 108 [2024-11-10 01:03:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:03:01,842 INFO L225 Difference]: With dead ends: 157162 [2024-11-10 01:03:01,842 INFO L226 Difference]: Without dead ends: 141543 [2024-11-10 01:03:01,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:03:01,884 INFO L432 NwaCegarLoop]: 2356 mSDtfsCounter, 14033 mSDsluCounter, 3599 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14033 SdHoareTripleChecker+Valid, 5955 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:03:01,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14033 Valid, 5955 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:03:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141543 states. [2024-11-10 01:03:04,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141543 to 68050. [2024-11-10 01:03:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68050 states, 68048 states have (on average 1.4439219374559136) internal successors, (98256), 68049 states have internal predecessors, (98256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68050 states to 68050 states and 98256 transitions. [2024-11-10 01:03:04,160 INFO L78 Accepts]: Start accepts. Automaton has 68050 states and 98256 transitions. Word has length 108 [2024-11-10 01:03:04,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:03:04,161 INFO L471 AbstractCegarLoop]: Abstraction has 68050 states and 98256 transitions. [2024-11-10 01:03:04,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 68050 states and 98256 transitions. [2024-11-10 01:03:04,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:03:04,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:03:04,169 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:03:04,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 01:03:04,169 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:03:04,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:03:04,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1288162977, now seen corresponding path program 1 times [2024-11-10 01:03:04,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:03:04,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982373186] [2024-11-10 01:03:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:03:04,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:03:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:03:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 01:03:04,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:03:04,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982373186] [2024-11-10 01:03:04,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982373186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:03:04,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:03:04,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:03:04,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077076899] [2024-11-10 01:03:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:03:04,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:03:04,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:03:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:03:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:03:04,556 INFO L87 Difference]: Start difference. First operand 68050 states and 98256 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:07,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:03:07,727 INFO L93 Difference]: Finished difference Result 172778 states and 247264 transitions. [2024-11-10 01:03:07,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:03:07,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 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 108 [2024-11-10 01:03:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:03:07,913 INFO L225 Difference]: With dead ends: 172778 [2024-11-10 01:03:07,913 INFO L226 Difference]: Without dead ends: 157159 [2024-11-10 01:03:07,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:03:07,947 INFO L432 NwaCegarLoop]: 2353 mSDtfsCounter, 14090 mSDsluCounter, 3516 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14090 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:03:07,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14090 Valid, 5869 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:03:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157159 states. [2024-11-10 01:03:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157159 to 83666. [2024-11-10 01:03:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83666 states, 83664 states have (on average 1.4375597628609678) internal successors, (120272), 83665 states have internal predecessors, (120272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83666 states to 83666 states and 120272 transitions. [2024-11-10 01:03:10,821 INFO L78 Accepts]: Start accepts. Automaton has 83666 states and 120272 transitions. Word has length 108 [2024-11-10 01:03:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:03:10,822 INFO L471 AbstractCegarLoop]: Abstraction has 83666 states and 120272 transitions. [2024-11-10 01:03:10,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 83666 states and 120272 transitions. [2024-11-10 01:03:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:03:10,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:03:10,830 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:03:10,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 01:03:10,830 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:03:10,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:03:10,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1273713121, now seen corresponding path program 1 times [2024-11-10 01:03:10,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:03:10,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662472479] [2024-11-10 01:03:10,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:03:10,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:03:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:03:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 01:03:11,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:03:11,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662472479] [2024-11-10 01:03:11,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662472479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:03:11,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:03:11,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:03:11,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655462218] [2024-11-10 01:03:11,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:03:11,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:03:11,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:03:11,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:03:11,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:03:11,022 INFO L87 Difference]: Start difference. First operand 83666 states and 120272 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:03:14,864 INFO L93 Difference]: Finished difference Result 188394 states and 269280 transitions. [2024-11-10 01:03:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:03:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-10 01:03:14,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:03:15,081 INFO L225 Difference]: With dead ends: 188394 [2024-11-10 01:03:15,082 INFO L226 Difference]: Without dead ends: 172775 [2024-11-10 01:03:15,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:03:15,122 INFO L432 NwaCegarLoop]: 2350 mSDtfsCounter, 14150 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14150 SdHoareTripleChecker+Valid, 5855 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:03:15,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14150 Valid, 5855 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:03:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172775 states. [2024-11-10 01:03:18,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172775 to 99282. [2024-11-10 01:03:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99282 states, 99280 states have (on average 1.4331990330378728) internal successors, (142288), 99281 states have internal predecessors, (142288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99282 states to 99282 states and 142288 transitions. [2024-11-10 01:03:18,661 INFO L78 Accepts]: Start accepts. Automaton has 99282 states and 142288 transitions. Word has length 108 [2024-11-10 01:03:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:03:18,662 INFO L471 AbstractCegarLoop]: Abstraction has 99282 states and 142288 transitions. [2024-11-10 01:03:18,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 99282 states and 142288 transitions. [2024-11-10 01:03:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:03:18,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:03:18,669 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:03:18,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 01:03:18,670 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:03:18,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:03:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -929651423, now seen corresponding path program 1 times [2024-11-10 01:03:18,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:03:18,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542858240] [2024-11-10 01:03:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:03:18,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:03:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:03:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 01:03:18,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:03:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542858240] [2024-11-10 01:03:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542858240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:03:18,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:03:18,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:03:18,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857495978] [2024-11-10 01:03:18,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:03:18,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:03:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:03:18,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:03:18,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:03:18,844 INFO L87 Difference]: Start difference. First operand 99282 states and 142288 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:03:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:03:23,070 INFO L93 Difference]: Finished difference Result 204010 states and 291296 transitions. [2024-11-10 01:03:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:03:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-10 01:03:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:03:23,327 INFO L225 Difference]: With dead ends: 204010 [2024-11-10 01:03:23,327 INFO L226 Difference]: Without dead ends: 188391 [2024-11-10 01:03:23,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:03:23,372 INFO L432 NwaCegarLoop]: 2350 mSDtfsCounter, 14008 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14008 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:03:23,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14008 Valid, 5965 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:03:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188391 states.