./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label07.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 5c8eb0411a0e666031f5e256d7f5bf4c8ae4cc2cba31fba81985613c1fb5f8fa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:47:40,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:47:40,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:47:40,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:47:40,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:47:40,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:47:40,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:47:40,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:47:40,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:47:40,767 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:47:40,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:47:40,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:47:40,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:47:40,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:47:40,769 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:47:40,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:47:40,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:47:40,770 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:47:40,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:47:40,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:47:40,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:47:40,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:47:40,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:47:40,775 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:47:40,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:47:40,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:47:40,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:47:40,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:47:40,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:47:40,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:47:40,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:47:40,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:47:40,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:47:40,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:47:40,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:47:40,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:47:40,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:47:40,778 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8eb0411a0e666031f5e256d7f5bf4c8ae4cc2cba31fba81985613c1fb5f8fa [2024-11-16 09:47:40,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:47:41,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:47:41,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:47:41,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:47:41,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:47:41,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label07.c [2024-11-16 09:47:42,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:47:42,604 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:47:42,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label07.c [2024-11-16 09:47:42,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13490fc1/0b2150e74b984107bce287eec4079b7d/FLAG42b82062f [2024-11-16 09:47:42,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d13490fc1/0b2150e74b984107bce287eec4079b7d [2024-11-16 09:47:42,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:47:42,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:47:42,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:47:42,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:47:42,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:47:42,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:47:42" (1/1) ... [2024-11-16 09:47:42,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:42, skipping insertion in model container [2024-11-16 09:47:42,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:47:42" (1/1) ... [2024-11-16 09:47:42,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:47:43,066 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.ufo.BOUNDED-14.pals+Problem12_label07.c[20426,20439] [2024-11-16 09:47:43,086 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.ufo.BOUNDED-14.pals+Problem12_label07.c[21268,21281] [2024-11-16 09:47:43,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:47:43,617 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:47:43,650 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.ufo.BOUNDED-14.pals+Problem12_label07.c[20426,20439] [2024-11-16 09:47:43,652 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.ufo.BOUNDED-14.pals+Problem12_label07.c[21268,21281] [2024-11-16 09:47:43,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:47:43,924 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:47:43,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43 WrapperNode [2024-11-16 09:47:43,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:47:43,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:47:43,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:47:43,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:47:43,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:43,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,263 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-11-16 09:47:44,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:47:44,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:47:44,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:47:44,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:47:44,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,486 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:47:44,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:47:44,752 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:47:44,752 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:47:44,752 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:47:44,753 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (1/1) ... [2024-11-16 09:47:44,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:47:44,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:47:44,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:47:44,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:47:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:47:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:47:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:47:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:47:44,922 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:47:44,924 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:47:48,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc calculate_output_#t~ret46#1; [2024-11-16 09:47:48,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: havoc calculate_output2_#t~ret47#1; [2024-11-16 09:47:48,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5254: havoc calculate_output3_#t~ret48#1; [2024-11-16 09:47:48,328 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-16 09:47:48,328 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:47:48,354 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:47:48,354 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:47:48,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:47:48 BoogieIcfgContainer [2024-11-16 09:47:48,355 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:47:48,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:47:48,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:47:48,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:47:48,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:47:42" (1/3) ... [2024-11-16 09:47:48,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a61b4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:47:48, skipping insertion in model container [2024-11-16 09:47:48,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43" (2/3) ... [2024-11-16 09:47:48,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a61b4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:47:48, skipping insertion in model container [2024-11-16 09:47:48,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:47:48" (3/3) ... [2024-11-16 09:47:48,366 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label07.c [2024-11-16 09:47:48,380 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:47:48,381 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:47:48,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:47:48,470 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;@38976852, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:47:48,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:47:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 937 states, 934 states have (on average 1.8972162740899357) internal successors, (1772), 936 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 09:47:48,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:48,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:47:48,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:48,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1226862003, now seen corresponding path program 1 times [2024-11-16 09:47:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:48,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675548345] [2024-11-16 09:47:48,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:48,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:48,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:48,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675548345] [2024-11-16 09:47:48,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675548345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:48,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:48,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:47:48,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453950013] [2024-11-16 09:47:48,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:48,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:48,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:48,761 INFO L87 Difference]: Start difference. First operand has 937 states, 934 states have (on average 1.8972162740899357) internal successors, (1772), 936 states have internal predecessors, (1772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:51,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:51,830 INFO L93 Difference]: Finished difference Result 2572 states and 4937 transitions. [2024-11-16 09:47:51,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-16 09:47:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:51,848 INFO L225 Difference]: With dead ends: 2572 [2024-11-16 09:47:51,848 INFO L226 Difference]: Without dead ends: 1621 [2024-11-16 09:47:51,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:51,856 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 1052 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:51,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 307 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 09:47:51,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-16 09:47:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2024-11-16 09:47:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1619 states have (on average 1.8610253242742434) internal successors, (3013), 1620 states have internal predecessors, (3013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 3013 transitions. [2024-11-16 09:47:51,957 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 3013 transitions. Word has length 9 [2024-11-16 09:47:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:51,958 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 3013 transitions. [2024-11-16 09:47:51,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 3013 transitions. [2024-11-16 09:47:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 09:47:51,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:51,961 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] [2024-11-16 09:47:51,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:47:51,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:51,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1279321061, now seen corresponding path program 1 times [2024-11-16 09:47:51,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:51,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533108984] [2024-11-16 09:47:51,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:51,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:52,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533108984] [2024-11-16 09:47:52,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533108984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:47:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959720640] [2024-11-16 09:47:52,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:47:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:47:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:47:52,160 INFO L87 Difference]: Start difference. First operand 1621 states and 3013 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) [2024-11-16 09:47:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,234 INFO L93 Difference]: Finished difference Result 1682 states and 3107 transitions. [2024-11-16 09:47:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:47:52,234 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 [2024-11-16 09:47:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,240 INFO L225 Difference]: With dead ends: 1682 [2024-11-16 09:47:52,240 INFO L226 Difference]: Without dead ends: 1621 [2024-11-16 09:47:52,241 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 [2024-11-16 09:47:52,242 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 0 mSDsluCounter, 4850 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6485 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:52,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6485 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-16 09:47:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2024-11-16 09:47:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1619 states have (on average 1.830142063001853) internal successors, (2963), 1620 states have internal predecessors, (2963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2963 transitions. [2024-11-16 09:47:52,282 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2963 transitions. Word has length 30 [2024-11-16 09:47:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,282 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2963 transitions. [2024-11-16 09:47:52,283 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) [2024-11-16 09:47:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2963 transitions. [2024-11-16 09:47:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 09:47:52,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,286 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] [2024-11-16 09:47:52,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:47:52,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 22689259, now seen corresponding path program 1 times [2024-11-16 09:47:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099376540] [2024-11-16 09:47:52,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:52,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099376540] [2024-11-16 09:47:52,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099376540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:47:52,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173202691] [2024-11-16 09:47:52,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:47:52,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:47:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:47:52,537 INFO L87 Difference]: Start difference. First operand 1621 states and 2963 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) [2024-11-16 09:47:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,989 INFO L93 Difference]: Finished difference Result 2419 states and 4223 transitions. [2024-11-16 09:47:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:47:52,990 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 [2024-11-16 09:47:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,999 INFO L225 Difference]: With dead ends: 2419 [2024-11-16 09:47:52,999 INFO L226 Difference]: Without dead ends: 2362 [2024-11-16 09:47:53,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 09:47:53,004 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 11562 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11562 SdHoareTripleChecker+Valid, 4984 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:53,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11562 Valid, 4984 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:47:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2024-11-16 09:47:53,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1675. [2024-11-16 09:47:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1673 states have (on average 1.822474596533174) internal successors, (3049), 1674 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 3049 transitions. [2024-11-16 09:47:53,052 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 3049 transitions. Word has length 79 [2024-11-16 09:47:53,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:53,052 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 3049 transitions. [2024-11-16 09:47:53,052 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) [2024-11-16 09:47:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 3049 transitions. [2024-11-16 09:47:53,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:47:53,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:53,055 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] [2024-11-16 09:47:53,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:47:53,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:53,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1676065331, now seen corresponding path program 1 times [2024-11-16 09:47:53,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:53,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086619871] [2024-11-16 09:47:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:53,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:53,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:53,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086619871] [2024-11-16 09:47:53,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086619871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:53,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:53,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:47:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247857257] [2024-11-16 09:47:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:53,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:47:53,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:47:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:47:53,516 INFO L87 Difference]: Start difference. First operand 1675 states and 3049 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) [2024-11-16 09:47:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:53,842 INFO L93 Difference]: Finished difference Result 1789 states and 3227 transitions. [2024-11-16 09:47:53,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:47:53,843 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 [2024-11-16 09:47:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:53,849 INFO L225 Difference]: With dead ends: 1789 [2024-11-16 09:47:53,849 INFO L226 Difference]: Without dead ends: 1678 [2024-11-16 09:47:53,850 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 [2024-11-16 09:47:53,851 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 6072 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6072 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:53,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6072 Valid, 2103 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:47:53,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-16 09:47:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1675. [2024-11-16 09:47:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1673 states have (on average 1.8218768679019726) internal successors, (3048), 1674 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 3048 transitions. [2024-11-16 09:47:53,886 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 3048 transitions. Word has length 81 [2024-11-16 09:47:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:53,887 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 3048 transitions. [2024-11-16 09:47:53,887 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) [2024-11-16 09:47:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 3048 transitions. [2024-11-16 09:47:53,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 09:47:53,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:53,888 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] [2024-11-16 09:47:53,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:47:53,889 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:53,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:53,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1305401496, now seen corresponding path program 1 times [2024-11-16 09:47:53,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:53,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849767420] [2024-11-16 09:47:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:53,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:53,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:53,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849767420] [2024-11-16 09:47:53,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849767420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:53,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:53,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:53,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764679162] [2024-11-16 09:47:53,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:53,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:53,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:53,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:53,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:53,988 INFO L87 Difference]: Start difference. First operand 1675 states and 3048 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) [2024-11-16 09:47:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:54,020 INFO L93 Difference]: Finished difference Result 1885 states and 3378 transitions. [2024-11-16 09:47:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:54,021 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 [2024-11-16 09:47:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:54,026 INFO L225 Difference]: With dead ends: 1885 [2024-11-16 09:47:54,026 INFO L226 Difference]: Without dead ends: 1774 [2024-11-16 09:47:54,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:54,028 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 1502 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1678 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 [2024-11-16 09:47:54,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1678 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2024-11-16 09:47:54,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1771. [2024-11-16 09:47:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1769 states have (on average 1.807801017524025) internal successors, (3198), 1770 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 3198 transitions. [2024-11-16 09:47:54,058 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 3198 transitions. Word has length 82 [2024-11-16 09:47:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:54,059 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 3198 transitions. [2024-11-16 09:47:54,059 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) [2024-11-16 09:47:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 3198 transitions. [2024-11-16 09:47:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:54,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:54,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:47:54,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:47:54,061 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:54,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1542775434, now seen corresponding path program 1 times [2024-11-16 09:47:54,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:54,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107873781] [2024-11-16 09:47:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:54,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:54,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:54,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107873781] [2024-11-16 09:47:54,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107873781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:54,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:54,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:54,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271952013] [2024-11-16 09:47:54,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:54,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:47:54,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:54,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:47:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:47:54,165 INFO L87 Difference]: Start difference. First operand 1771 states and 3198 transitions. Second operand has 4 states, 4 states have (on average 20.75) 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) [2024-11-16 09:47:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:58,214 INFO L93 Difference]: Finished difference Result 5543 states and 10211 transitions. [2024-11-16 09:47:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:47:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) 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 [2024-11-16 09:47:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:58,226 INFO L225 Difference]: With dead ends: 5543 [2024-11-16 09:47:58,226 INFO L226 Difference]: Without dead ends: 4036 [2024-11-16 09:47:58,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:47:58,230 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 2590 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 5147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:58,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 351 Invalid, 5147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1535 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 09:47:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2024-11-16 09:47:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 4027. [2024-11-16 09:47:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 4025 states have (on average 1.6012422360248446) internal successors, (6445), 4026 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:58,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 6445 transitions. [2024-11-16 09:47:58,290 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 6445 transitions. Word has length 83 [2024-11-16 09:47:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:58,291 INFO L471 AbstractCegarLoop]: Abstraction has 4027 states and 6445 transitions. [2024-11-16 09:47:58,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) 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) [2024-11-16 09:47:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 6445 transitions. [2024-11-16 09:47:58,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:58,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:58,293 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] [2024-11-16 09:47:58,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:47:58,293 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:58,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1918095055, now seen corresponding path program 1 times [2024-11-16 09:47:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:58,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652144918] [2024-11-16 09:47:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:58,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:58,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:58,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652144918] [2024-11-16 09:47:58,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652144918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:58,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:58,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:58,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427166515] [2024-11-16 09:47:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:58,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:58,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:58,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:58,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,369 INFO L87 Difference]: Start difference. First operand 4027 states and 6445 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) [2024-11-16 09:47:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:58,404 INFO L93 Difference]: Finished difference Result 4244 states and 6785 transitions. [2024-11-16 09:47:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:58,404 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 [2024-11-16 09:47:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:58,416 INFO L225 Difference]: With dead ends: 4244 [2024-11-16 09:47:58,416 INFO L226 Difference]: Without dead ends: 4133 [2024-11-16 09:47:58,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,420 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 1520 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1752 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 [2024-11-16 09:47:58,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:58,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2024-11-16 09:47:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4130. [2024-11-16 09:47:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4130 states, 4128 states have (on average 1.600048449612403) internal successors, (6605), 4129 states have internal predecessors, (6605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4130 states to 4130 states and 6605 transitions. [2024-11-16 09:47:58,490 INFO L78 Accepts]: Start accepts. Automaton has 4130 states and 6605 transitions. Word has length 83 [2024-11-16 09:47:58,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:58,490 INFO L471 AbstractCegarLoop]: Abstraction has 4130 states and 6605 transitions. [2024-11-16 09:47:58,490 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) [2024-11-16 09:47:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4130 states and 6605 transitions. [2024-11-16 09:47:58,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:58,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:58,491 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] [2024-11-16 09:47:58,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:47:58,491 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:58,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1268772337, now seen corresponding path program 1 times [2024-11-16 09:47:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:58,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582036575] [2024-11-16 09:47:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:58,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:58,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582036575] [2024-11-16 09:47:58,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582036575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:58,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:58,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36685264] [2024-11-16 09:47:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:58,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:58,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,556 INFO L87 Difference]: Start difference. First operand 4130 states and 6605 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) [2024-11-16 09:47:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:58,588 INFO L93 Difference]: Finished difference Result 4720 states and 7527 transitions. [2024-11-16 09:47:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:58,589 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 [2024-11-16 09:47:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:58,600 INFO L225 Difference]: With dead ends: 4720 [2024-11-16 09:47:58,600 INFO L226 Difference]: Without dead ends: 4413 [2024-11-16 09:47:58,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,603 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1518 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1758 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 [2024-11-16 09:47:58,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1758 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2024-11-16 09:47:58,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4410. [2024-11-16 09:47:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4410 states, 4408 states have (on average 1.596415607985481) internal successors, (7037), 4409 states have internal predecessors, (7037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:58,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 7037 transitions. [2024-11-16 09:47:58,676 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 7037 transitions. Word has length 83 [2024-11-16 09:47:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:58,676 INFO L471 AbstractCegarLoop]: Abstraction has 4410 states and 7037 transitions. [2024-11-16 09:47:58,676 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) [2024-11-16 09:47:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 7037 transitions. [2024-11-16 09:47:58,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:58,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:58,677 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] [2024-11-16 09:47:58,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:47:58,677 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:58,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2041313137, now seen corresponding path program 1 times [2024-11-16 09:47:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313871565] [2024-11-16 09:47:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:58,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:58,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:58,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313871565] [2024-11-16 09:47:58,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313871565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:58,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:58,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:58,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438686540] [2024-11-16 09:47:58,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:58,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:58,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:58,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,783 INFO L87 Difference]: Start difference. First operand 4410 states and 7037 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) [2024-11-16 09:47:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:58,818 INFO L93 Difference]: Finished difference Result 5536 states and 8781 transitions. [2024-11-16 09:47:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:58,819 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 [2024-11-16 09:47:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:58,839 INFO L225 Difference]: With dead ends: 5536 [2024-11-16 09:47:58,841 INFO L226 Difference]: Without dead ends: 4949 [2024-11-16 09:47:58,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,845 INFO L432 NwaCegarLoop]: 1651 mSDtfsCounter, 1514 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1754 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 [2024-11-16 09:47:58,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4949 states. [2024-11-16 09:47:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4949 to 4946. [2024-11-16 09:47:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 4944 states have (on average 1.5883899676375404) internal successors, (7853), 4945 states have internal predecessors, (7853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 7853 transitions. [2024-11-16 09:47:58,929 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 7853 transitions. Word has length 83 [2024-11-16 09:47:58,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:58,930 INFO L471 AbstractCegarLoop]: Abstraction has 4946 states and 7853 transitions. [2024-11-16 09:47:58,933 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) [2024-11-16 09:47:58,934 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 7853 transitions. [2024-11-16 09:47:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:58,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:58,934 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] [2024-11-16 09:47:58,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:47:58,935 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:58,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:58,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1252244431, now seen corresponding path program 1 times [2024-11-16 09:47:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:58,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57159659] [2024-11-16 09:47:58,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57159659] [2024-11-16 09:47:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57159659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:58,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:58,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909360816] [2024-11-16 09:47:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:58,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,996 INFO L87 Difference]: Start difference. First operand 4946 states and 7853 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) [2024-11-16 09:47:59,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:59,046 INFO L93 Difference]: Finished difference Result 7096 states and 11145 transitions. [2024-11-16 09:47:59,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:59,046 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 [2024-11-16 09:47:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:59,055 INFO L225 Difference]: With dead ends: 7096 [2024-11-16 09:47:59,056 INFO L226 Difference]: Without dead ends: 5973 [2024-11-16 09:47:59,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:59,060 INFO L432 NwaCegarLoop]: 1649 mSDtfsCounter, 1512 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1756 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 [2024-11-16 09:47:59,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1756 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:59,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2024-11-16 09:47:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5970. [2024-11-16 09:47:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5970 states, 5968 states have (on average 1.5732238605898123) internal successors, (9389), 5969 states have internal predecessors, (9389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 9389 transitions. [2024-11-16 09:47:59,147 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 9389 transitions. Word has length 83 [2024-11-16 09:47:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:59,148 INFO L471 AbstractCegarLoop]: Abstraction has 5970 states and 9389 transitions. [2024-11-16 09:47:59,148 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) [2024-11-16 09:47:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 9389 transitions. [2024-11-16 09:47:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:59,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:59,149 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] [2024-11-16 09:47:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:47:59,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:59,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1237794575, now seen corresponding path program 1 times [2024-11-16 09:47:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823179911] [2024-11-16 09:47:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:59,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:59,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823179911] [2024-11-16 09:47:59,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823179911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:59,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:59,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937285806] [2024-11-16 09:47:59,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:59,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:59,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:59,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:59,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:59,210 INFO L87 Difference]: Start difference. First operand 5970 states and 9389 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) [2024-11-16 09:47:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:59,272 INFO L93 Difference]: Finished difference Result 10072 states and 15585 transitions. [2024-11-16 09:47:59,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:59,273 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 [2024-11-16 09:47:59,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:59,284 INFO L225 Difference]: With dead ends: 10072 [2024-11-16 09:47:59,285 INFO L226 Difference]: Without dead ends: 7925 [2024-11-16 09:47:59,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:59,289 INFO L432 NwaCegarLoop]: 1647 mSDtfsCounter, 1510 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1758 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 [2024-11-16 09:47:59,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1758 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7925 states. [2024-11-16 09:47:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7925 to 7922. [2024-11-16 09:47:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7922 states, 7920 states have (on average 1.5491161616161617) internal successors, (12269), 7921 states have internal predecessors, (12269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7922 states to 7922 states and 12269 transitions. [2024-11-16 09:47:59,414 INFO L78 Accepts]: Start accepts. Automaton has 7922 states and 12269 transitions. Word has length 83 [2024-11-16 09:47:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:59,414 INFO L471 AbstractCegarLoop]: Abstraction has 7922 states and 12269 transitions. [2024-11-16 09:47:59,415 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) [2024-11-16 09:47:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7922 states and 12269 transitions. [2024-11-16 09:47:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:59,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:59,415 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] [2024-11-16 09:47:59,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:47:59,416 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:59,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash -965569969, now seen corresponding path program 1 times [2024-11-16 09:47:59,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:59,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669875124] [2024-11-16 09:47:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669875124] [2024-11-16 09:47:59,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669875124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:59,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:59,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914271265] [2024-11-16 09:47:59,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:59,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:59,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:59,472 INFO L87 Difference]: Start difference. First operand 7922 states and 12269 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) [2024-11-16 09:47:59,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:59,570 INFO L93 Difference]: Finished difference Result 15736 states and 23889 transitions. [2024-11-16 09:47:59,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:59,570 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 [2024-11-16 09:47:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:59,588 INFO L225 Difference]: With dead ends: 15736 [2024-11-16 09:47:59,588 INFO L226 Difference]: Without dead ends: 11637 [2024-11-16 09:47:59,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:59,595 INFO L432 NwaCegarLoop]: 1645 mSDtfsCounter, 1508 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1760 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 [2024-11-16 09:47:59,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1760 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:47:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11637 states. [2024-11-16 09:47:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11637 to 11634. [2024-11-16 09:47:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11634 states, 11632 states have (on average 1.5169360385144428) internal successors, (17645), 11633 states have internal predecessors, (17645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11634 states to 11634 states and 17645 transitions. [2024-11-16 09:47:59,844 INFO L78 Accepts]: Start accepts. Automaton has 11634 states and 17645 transitions. Word has length 83 [2024-11-16 09:47:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:59,844 INFO L471 AbstractCegarLoop]: Abstraction has 11634 states and 17645 transitions. [2024-11-16 09:47:59,845 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) [2024-11-16 09:47:59,845 INFO L276 IsEmpty]: Start isEmpty. Operand 11634 states and 17645 transitions. [2024-11-16 09:47:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:59,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:59,846 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] [2024-11-16 09:47:59,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:47:59,846 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:59,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:59,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1489847024, now seen corresponding path program 1 times [2024-11-16 09:47:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91864291] [2024-11-16 09:47:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:48:00,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:00,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91864291] [2024-11-16 09:48:00,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91864291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:00,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:00,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:48:00,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135475737] [2024-11-16 09:48:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:00,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:48:00,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:48:00,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:48:00,048 INFO L87 Difference]: Start difference. First operand 11634 states and 17645 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) [2024-11-16 09:48:00,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:00,170 INFO L93 Difference]: Finished difference Result 12021 states and 18159 transitions. [2024-11-16 09:48:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:48:00,171 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 [2024-11-16 09:48:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:00,187 INFO L225 Difference]: With dead ends: 12021 [2024-11-16 09:48:00,187 INFO L226 Difference]: Without dead ends: 12018 [2024-11-16 09:48:00,191 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 [2024-11-16 09:48:00,192 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 0 mSDsluCounter, 9473 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11054 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 [2024-11-16 09:48:00,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11054 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2024-11-16 09:48:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 12018. [2024-11-16 09:48:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12018 states, 12016 states have (on average 1.4977529960053262) internal successors, (17997), 12017 states have internal predecessors, (17997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12018 states to 12018 states and 17997 transitions. [2024-11-16 09:48:00,386 INFO L78 Accepts]: Start accepts. Automaton has 12018 states and 17997 transitions. Word has length 83 [2024-11-16 09:48:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:00,387 INFO L471 AbstractCegarLoop]: Abstraction has 12018 states and 17997 transitions. [2024-11-16 09:48:00,387 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) [2024-11-16 09:48:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12018 states and 17997 transitions. [2024-11-16 09:48:00,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:00,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:00,388 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] [2024-11-16 09:48:00,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:48:00,388 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:00,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:00,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1759238833, now seen corresponding path program 1 times [2024-11-16 09:48:00,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:00,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338558430] [2024-11-16 09:48:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:00,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:48:00,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:00,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338558430] [2024-11-16 09:48:00,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338558430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:00,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:00,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:00,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745175429] [2024-11-16 09:48:00,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:00,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:00,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:00,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:00,445 INFO L87 Difference]: Start difference. First operand 12018 states and 17997 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) [2024-11-16 09:48:00,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:00,770 INFO L93 Difference]: Finished difference Result 27640 states and 40401 transitions. [2024-11-16 09:48:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:00,773 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 [2024-11-16 09:48:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:00,802 INFO L225 Difference]: With dead ends: 27640 [2024-11-16 09:48:00,802 INFO L226 Difference]: Without dead ends: 19445 [2024-11-16 09:48:00,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:00,815 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 1516 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1760 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 [2024-11-16 09:48:00,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1760 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19445 states. [2024-11-16 09:48:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19445 to 19442. [2024-11-16 09:48:01,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19442 states, 19440 states have (on average 1.4574588477366255) internal successors, (28333), 19441 states have internal predecessors, (28333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19442 states to 19442 states and 28333 transitions. [2024-11-16 09:48:01,253 INFO L78 Accepts]: Start accepts. Automaton has 19442 states and 28333 transitions. Word has length 83 [2024-11-16 09:48:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:01,253 INFO L471 AbstractCegarLoop]: Abstraction has 19442 states and 28333 transitions. [2024-11-16 09:48:01,253 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) [2024-11-16 09:48:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 19442 states and 28333 transitions. [2024-11-16 09:48:01,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:01,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:01,258 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] [2024-11-16 09:48:01,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:48:01,258 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:01,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:01,259 INFO L85 PathProgramCache]: Analyzing trace with hash 903466145, now seen corresponding path program 1 times [2024-11-16 09:48:01,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:01,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579665960] [2024-11-16 09:48:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:01,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:48:01,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:01,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579665960] [2024-11-16 09:48:01,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579665960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:01,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:01,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:01,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117450725] [2024-11-16 09:48:01,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:01,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:01,537 INFO L87 Difference]: Start difference. First operand 19442 states and 28333 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) [2024-11-16 09:48:02,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:02,900 INFO L93 Difference]: Finished difference Result 127434 states and 181757 transitions. [2024-11-16 09:48:02,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:02,901 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 [2024-11-16 09:48:02,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:03,068 INFO L225 Difference]: With dead ends: 127434 [2024-11-16 09:48:03,069 INFO L226 Difference]: Without dead ends: 116423 [2024-11-16 09:48:03,096 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 [2024-11-16 09:48:03,097 INFO L432 NwaCegarLoop]: 1678 mSDtfsCounter, 9910 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9910 SdHoareTripleChecker+Valid, 4604 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 [2024-11-16 09:48:03,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9910 Valid, 4604 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116423 states. [2024-11-16 09:48:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116423 to 32818. [2024-11-16 09:48:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32818 states, 32816 states have (on average 1.436768649439298) internal successors, (47149), 32817 states have internal predecessors, (47149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32818 states to 32818 states and 47149 transitions. [2024-11-16 09:48:04,256 INFO L78 Accepts]: Start accepts. Automaton has 32818 states and 47149 transitions. Word has length 108 [2024-11-16 09:48:04,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:04,256 INFO L471 AbstractCegarLoop]: Abstraction has 32818 states and 47149 transitions. [2024-11-16 09:48:04,256 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) [2024-11-16 09:48:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand 32818 states and 47149 transitions. [2024-11-16 09:48:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:04,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:04,263 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] [2024-11-16 09:48:04,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:48:04,264 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:04,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:04,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2011566049, now seen corresponding path program 1 times [2024-11-16 09:48:04,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:04,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836776826] [2024-11-16 09:48:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:04,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:48:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:04,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836776826] [2024-11-16 09:48:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836776826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:04,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:04,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:04,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041903885] [2024-11-16 09:48:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:04,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:04,453 INFO L87 Difference]: Start difference. First operand 32818 states and 47149 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) [2024-11-16 09:48:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:07,210 INFO L93 Difference]: Finished difference Result 143050 states and 203837 transitions. [2024-11-16 09:48:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:07,211 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 [2024-11-16 09:48:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:07,456 INFO L225 Difference]: With dead ends: 143050 [2024-11-16 09:48:07,457 INFO L226 Difference]: Without dead ends: 127431 [2024-11-16 09:48:07,509 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 [2024-11-16 09:48:07,509 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 9907 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9907 SdHoareTripleChecker+Valid, 4583 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 [2024-11-16 09:48:07,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9907 Valid, 4583 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127431 states. [2024-11-16 09:48:09,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127431 to 53938. [2024-11-16 09:48:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53938 states, 53936 states have (on average 1.4247441412043904) internal successors, (76845), 53937 states have internal predecessors, (76845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53938 states to 53938 states and 76845 transitions. [2024-11-16 09:48:09,472 INFO L78 Accepts]: Start accepts. Automaton has 53938 states and 76845 transitions. Word has length 108 [2024-11-16 09:48:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:09,473 INFO L471 AbstractCegarLoop]: Abstraction has 53938 states and 76845 transitions. [2024-11-16 09:48:09,473 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) [2024-11-16 09:48:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 53938 states and 76845 transitions. [2024-11-16 09:48:09,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:09,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:09,481 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] [2024-11-16 09:48:09,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:48:09,481 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:09,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:09,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1239025249, now seen corresponding path program 1 times [2024-11-16 09:48:09,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:09,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397300889] [2024-11-16 09:48:09,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:09,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:48:09,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:09,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397300889] [2024-11-16 09:48:09,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397300889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:09,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952741480] [2024-11-16 09:48:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:09,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:09,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:09,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:09,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:09,661 INFO L87 Difference]: Start difference. First operand 53938 states and 76845 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) [2024-11-16 09:48:12,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:12,789 INFO L93 Difference]: Finished difference Result 158666 states and 225853 transitions. [2024-11-16 09:48:12,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:12,790 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 [2024-11-16 09:48:12,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:13,022 INFO L225 Difference]: With dead ends: 158666 [2024-11-16 09:48:13,022 INFO L226 Difference]: Without dead ends: 143047 [2024-11-16 09:48:13,065 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 [2024-11-16 09:48:13,065 INFO L432 NwaCegarLoop]: 1676 mSDtfsCounter, 9953 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9953 SdHoareTripleChecker+Valid, 4595 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 [2024-11-16 09:48:13,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9953 Valid, 4595 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143047 states. [2024-11-16 09:48:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143047 to 69554. [2024-11-16 09:48:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69554 states, 69552 states have (on average 1.4213969404186795) internal successors, (98861), 69553 states have internal predecessors, (98861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69554 states to 69554 states and 98861 transitions. [2024-11-16 09:48:15,372 INFO L78 Accepts]: Start accepts. Automaton has 69554 states and 98861 transitions. Word has length 108 [2024-11-16 09:48:15,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:15,373 INFO L471 AbstractCegarLoop]: Abstraction has 69554 states and 98861 transitions. [2024-11-16 09:48:15,373 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) [2024-11-16 09:48:15,373 INFO L276 IsEmpty]: Start isEmpty. Operand 69554 states and 98861 transitions. [2024-11-16 09:48:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:15,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:15,381 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] [2024-11-16 09:48:15,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:48:15,382 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:15,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash 237615521, now seen corresponding path program 1 times [2024-11-16 09:48:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:15,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921899540] [2024-11-16 09:48:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:15,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:48:15,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:15,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921899540] [2024-11-16 09:48:15,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921899540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:15,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:15,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:15,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865477837] [2024-11-16 09:48:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:15,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:15,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:15,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:15,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:15,554 INFO L87 Difference]: Start difference. First operand 69554 states and 98861 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) [2024-11-16 09:48:19,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:19,125 INFO L93 Difference]: Finished difference Result 174282 states and 247869 transitions. [2024-11-16 09:48:19,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:19,126 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 [2024-11-16 09:48:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:19,380 INFO L225 Difference]: With dead ends: 174282 [2024-11-16 09:48:19,380 INFO L226 Difference]: Without dead ends: 158663 [2024-11-16 09:48:19,424 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 [2024-11-16 09:48:19,424 INFO L432 NwaCegarLoop]: 1673 mSDtfsCounter, 10012 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10012 SdHoareTripleChecker+Valid, 4483 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:19,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10012 Valid, 4483 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:19,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158663 states. [2024-11-16 09:48:21,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158663 to 85170. [2024-11-16 09:48:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85170 states, 85168 states have (on average 1.419277193312042) internal successors, (120877), 85169 states have internal predecessors, (120877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85170 states to 85170 states and 120877 transitions. [2024-11-16 09:48:22,305 INFO L78 Accepts]: Start accepts. Automaton has 85170 states and 120877 transitions. Word has length 108 [2024-11-16 09:48:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:22,306 INFO L471 AbstractCegarLoop]: Abstraction has 85170 states and 120877 transitions. [2024-11-16 09:48:22,306 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) [2024-11-16 09:48:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 85170 states and 120877 transitions. [2024-11-16 09:48:22,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:22,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:22,315 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] [2024-11-16 09:48:22,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:48:22,315 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:22,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:22,316 INFO L85 PathProgramCache]: Analyzing trace with hash 223165665, now seen corresponding path program 1 times [2024-11-16 09:48:22,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:22,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794218847] [2024-11-16 09:48:22,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:22,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:48:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794218847] [2024-11-16 09:48:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794218847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:22,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:22,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933970957] [2024-11-16 09:48:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:22,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:22,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:22,549 INFO L87 Difference]: Start difference. First operand 85170 states and 120877 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) [2024-11-16 09:48:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:26,657 INFO L93 Difference]: Finished difference Result 189898 states and 269885 transitions. [2024-11-16 09:48:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:26,659 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 [2024-11-16 09:48:26,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:26,918 INFO L225 Difference]: With dead ends: 189898 [2024-11-16 09:48:26,918 INFO L226 Difference]: Without dead ends: 174279 [2024-11-16 09:48:26,956 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 [2024-11-16 09:48:26,957 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 10068 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10068 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:26,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10068 Valid, 4518 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174279 states. [2024-11-16 09:48:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174279 to 100786. [2024-11-16 09:48:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100786 states, 100784 states have (on average 1.4178143356088269) internal successors, (142893), 100785 states have internal predecessors, (142893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100786 states to 100786 states and 142893 transitions. [2024-11-16 09:48:30,458 INFO L78 Accepts]: Start accepts. Automaton has 100786 states and 142893 transitions. Word has length 108 [2024-11-16 09:48:30,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:30,458 INFO L471 AbstractCegarLoop]: Abstraction has 100786 states and 142893 transitions. [2024-11-16 09:48:30,458 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) [2024-11-16 09:48:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 100786 states and 142893 transitions. [2024-11-16 09:48:30,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:30,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:30,469 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] [2024-11-16 09:48:30,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:48:30,469 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:30,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1980198879, now seen corresponding path program 1 times [2024-11-16 09:48:30,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:30,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065966283] [2024-11-16 09:48:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:30,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 09:48:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065966283] [2024-11-16 09:48:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065966283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976532035] [2024-11-16 09:48:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:30,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:30,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:30,664 INFO L87 Difference]: Start difference. First operand 100786 states and 142893 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)