./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.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_label06.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 5a8db184ab7332ab7843787a030506038544a962a60c0b43f4b663ada8e12be3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:47:40,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:47:40,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:47:40,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:47:40,142 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:47:40,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:47:40,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:47:40,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:47:40,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:47:40,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:47:40,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:47:40,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:47:40,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:47:40,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:47:40,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:47:40,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:47:40,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:47:40,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:47:40,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:47:40,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:47:40,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:47:40,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:47:40,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:47:40,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:47:40,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:47:40,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:47:40,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:47:40,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:47:40,176 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:47:40,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:47:40,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:47:40,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:47:40,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:47:40,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:47:40,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:47:40,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:47:40,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:47:40,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8db184ab7332ab7843787a030506038544a962a60c0b43f4b663ada8e12be3 [2024-11-16 09:47:40,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:47:40,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:47:40,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:47:40,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:47:40,380 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:47:40,381 INFO L431 ainManager$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_label06.c [2024-11-16 09:47:41,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:47:41,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:47:41,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c [2024-11-16 09:47:41,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83dc56f71/825e328d3f694a72a906d7b56fd12ad1/FLAG91983308c [2024-11-16 09:47:42,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83dc56f71/825e328d3f694a72a906d7b56fd12ad1 [2024-11-16 09:47:42,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:47:42,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:47:42,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:47:42,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:47:42,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:47:42,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:47:42" (1/1) ... [2024-11-16 09:47:42,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@502db51f 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 09:47:42,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:47:42" (1/1) ... [2024-11-16 09:47:42,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:47:42,369 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_label06.c[20426,20439] [2024-11-16 09:47:42,401 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_label06.c[23243,23256] [2024-11-16 09:47:42,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:47:42,874 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:47:42,909 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_label06.c[20426,20439] [2024-11-16 09:47:42,917 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_label06.c[23243,23256] [2024-11-16 09:47:43,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:47:43,296 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:47:43,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:47:43 WrapperNode [2024-11-16 09:47:43,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:47:43,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:47:43,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:47:43,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:47:43,302 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 09:47:43,343 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 09:47:43,569 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-11-16 09:47:43,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:47:43,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:47:43,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:47:43,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:47:43,578 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 09:47:43,578 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 09:47:43,614 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 09:47:43,788 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 09:47:43,789 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 09:47:43,789 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 09:47:43,899 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 09:47:43,916 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 09:47:43,934 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 09:47:43,948 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 09:47:43,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:47:43,988 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:47:43,989 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:47:43,989 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:47:43,989 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 09:47:43,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:47:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:47:44,021 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 09:47:44,023 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 09:47:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:47:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:47:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:47:44,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:47:44,161 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:47:44,163 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:47:47,305 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc calculate_output_#t~ret46#1; [2024-11-16 09:47:47,305 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3764: havoc calculate_output2_#t~ret47#1; [2024-11-16 09:47:47,306 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5254: havoc calculate_output3_#t~ret48#1; [2024-11-16 09:47:47,485 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-16 09:47:47,485 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:47:47,511 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:47:47,511 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:47:47,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:47:47 BoogieIcfgContainer [2024-11-16 09:47:47,512 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:47:47,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:47:47,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:47:47,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:47:47,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:47:42" (1/3) ... [2024-11-16 09:47:47,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecbd245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:47:47, skipping insertion in model container [2024-11-16 09:47:47,520 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 09:47:47,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecbd245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:47:47, skipping insertion in model container [2024-11-16 09:47:47,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:47:47" (3/3) ... [2024-11-16 09:47:47,524 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label06.c [2024-11-16 09:47:47,536 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:47:47,537 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:47:47,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:47:47,613 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;@1ce6aabb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:47:47,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:47:47,622 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 09:47:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:47:47,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:47,630 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] [2024-11-16 09:47:47,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:47,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2090807933, now seen corresponding path program 1 times [2024-11-16 09:47:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442929590] [2024-11-16 09:47:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:47,893 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 09:47:47,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442929590] [2024-11-16 09:47:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442929590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:47,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:47:47,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973709995] [2024-11-16 09:47:47,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:47,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:47,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:47,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:47,918 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 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 09:47:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:50,533 INFO L93 Difference]: Finished difference Result 2572 states and 4937 transitions. [2024-11-16 09:47:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:50,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 09:47:50,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:50,554 INFO L225 Difference]: With dead ends: 2572 [2024-11-16 09:47:50,554 INFO L226 Difference]: Without dead ends: 1621 [2024-11-16 09:47:50,559 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 09:47:50,564 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 1010 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:50,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 686 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:47:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-16 09:47:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2024-11-16 09:47:50,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1619 states have (on average 1.6460778258184063) internal successors, (2665), 1620 states have internal predecessors, (2665), 0 states have call successors, (0), 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 09:47:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2665 transitions. [2024-11-16 09:47:50,644 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2665 transitions. Word has length 26 [2024-11-16 09:47:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:50,644 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2665 transitions. [2024-11-16 09:47:50,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 09:47:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2665 transitions. [2024-11-16 09:47:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 09:47:50,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:50,646 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 09:47:50,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:47:50,646 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:50,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:50,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1279321061, now seen corresponding path program 1 times [2024-11-16 09:47:50,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:50,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021525272] [2024-11-16 09:47:50,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:50,801 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 09:47:50,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021525272] [2024-11-16 09:47:50,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021525272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:47:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238578550] [2024-11-16 09:47:50,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:50,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:47:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:50,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:47:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:47:50,804 INFO L87 Difference]: Start difference. First operand 1621 states and 2665 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 09:47:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:50,867 INFO L93 Difference]: Finished difference Result 1682 states and 2759 transitions. [2024-11-16 09:47:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:47:50,867 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 09:47:50,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:50,872 INFO L225 Difference]: With dead ends: 1682 [2024-11-16 09:47:50,872 INFO L226 Difference]: Without dead ends: 1621 [2024-11-16 09:47:50,872 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 09:47:50,873 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 09:47:50,873 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 09:47:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-16 09:47:50,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2024-11-16 09:47:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1619 states have (on average 1.615194564546016) internal successors, (2615), 1620 states have internal predecessors, (2615), 0 states have call successors, (0), 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 09:47:50,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2615 transitions. [2024-11-16 09:47:50,895 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2615 transitions. Word has length 30 [2024-11-16 09:47:50,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:50,895 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2615 transitions. [2024-11-16 09:47:50,895 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 09:47:50,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2615 transitions. [2024-11-16 09:47:50,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 09:47:50,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:50,897 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 09:47:50,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:47:50,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:50,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:50,898 INFO L85 PathProgramCache]: Analyzing trace with hash 22689259, now seen corresponding path program 1 times [2024-11-16 09:47:50,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:50,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478369245] [2024-11-16 09:47:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:50,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:51,105 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 09:47:51,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:51,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478369245] [2024-11-16 09:47:51,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478369245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:51,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:51,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:47:51,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476868408] [2024-11-16 09:47:51,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:51,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:47:51,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:51,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:47:51,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:47:51,108 INFO L87 Difference]: Start difference. First operand 1621 states and 2615 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 09:47:51,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:51,463 INFO L93 Difference]: Finished difference Result 2419 states and 3875 transitions. [2024-11-16 09:47:51,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:47:51,463 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 09:47:51,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:51,469 INFO L225 Difference]: With dead ends: 2419 [2024-11-16 09:47:51,470 INFO L226 Difference]: Without dead ends: 2362 [2024-11-16 09:47:51,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 09:47:51,471 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 11562 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 09:47:51,471 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 09:47:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2024-11-16 09:47:51,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1675. [2024-11-16 09:47:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1673 states have (on average 1.6144650328750747) internal successors, (2701), 1674 states have internal predecessors, (2701), 0 states have call successors, (0), 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 09:47:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2701 transitions. [2024-11-16 09:47:51,494 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2701 transitions. Word has length 79 [2024-11-16 09:47:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:51,494 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 2701 transitions. [2024-11-16 09:47:51,494 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 09:47:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2701 transitions. [2024-11-16 09:47:51,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:47:51,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:51,496 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 09:47:51,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:47:51,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:51,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1676065331, now seen corresponding path program 1 times [2024-11-16 09:47:51,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:51,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790543037] [2024-11-16 09:47:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:51,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:51,788 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 09:47:51,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790543037] [2024-11-16 09:47:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790543037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:51,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:51,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:47:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030362514] [2024-11-16 09:47:51,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:51,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:47:51,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:51,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:47:51,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:47:51,790 INFO L87 Difference]: Start difference. First operand 1675 states and 2701 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 09:47:52,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,042 INFO L93 Difference]: Finished difference Result 1789 states and 2879 transitions. [2024-11-16 09:47:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:47:52,043 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 09:47:52,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,051 INFO L225 Difference]: With dead ends: 1789 [2024-11-16 09:47:52,051 INFO L226 Difference]: Without dead ends: 1678 [2024-11-16 09:47:52,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 09:47:52,052 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 09:47:52,053 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 09:47:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-16 09:47:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1675. [2024-11-16 09:47:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1673 states have (on average 1.6138673042438734) internal successors, (2700), 1674 states have internal predecessors, (2700), 0 states have call successors, (0), 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 09:47:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2700 transitions. [2024-11-16 09:47:52,075 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2700 transitions. Word has length 81 [2024-11-16 09:47:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,075 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 2700 transitions. [2024-11-16 09:47:52,075 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 09:47:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2700 transitions. [2024-11-16 09:47:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 09:47:52,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,077 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 09:47:52,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:47:52,077 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1305401496, now seen corresponding path program 1 times [2024-11-16 09:47:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375881952] [2024-11-16 09:47:52,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,162 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 09:47:52,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375881952] [2024-11-16 09:47:52,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375881952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056802975] [2024-11-16 09:47:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,165 INFO L87 Difference]: Start difference. First operand 1675 states and 2700 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 09:47:52,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,190 INFO L93 Difference]: Finished difference Result 1885 states and 3030 transitions. [2024-11-16 09:47:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:52,190 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 09:47:52,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,196 INFO L225 Difference]: With dead ends: 1885 [2024-11-16 09:47:52,196 INFO L226 Difference]: Without dead ends: 1774 [2024-11-16 09:47:52,197 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 09:47:52,198 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 09:47:52,199 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 09:47:52,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2024-11-16 09:47:52,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1771. [2024-11-16 09:47:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1769 states have (on average 1.611079706048615) internal successors, (2850), 1770 states have internal predecessors, (2850), 0 states have call successors, (0), 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 09:47:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2850 transitions. [2024-11-16 09:47:52,225 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2850 transitions. Word has length 82 [2024-11-16 09:47:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,225 INFO L471 AbstractCegarLoop]: Abstraction has 1771 states and 2850 transitions. [2024-11-16 09:47:52,225 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 09:47:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2850 transitions. [2024-11-16 09:47:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:52,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,227 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 09:47:52,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:47:52,227 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1918095055, now seen corresponding path program 1 times [2024-11-16 09:47:52,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574851859] [2024-11-16 09:47:52,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,297 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 09:47:52,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574851859] [2024-11-16 09:47:52,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574851859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436260904] [2024-11-16 09:47:52,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,300 INFO L87 Difference]: Start difference. First operand 1771 states and 2850 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 09:47:52,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,332 INFO L93 Difference]: Finished difference Result 1988 states and 3190 transitions. [2024-11-16 09:47:52,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:52,333 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 09:47:52,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,337 INFO L225 Difference]: With dead ends: 1988 [2024-11-16 09:47:52,338 INFO L226 Difference]: Without dead ends: 1877 [2024-11-16 09:47:52,338 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 09:47:52,339 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 09:47:52,340 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 09:47:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2024-11-16 09:47:52,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1874. [2024-11-16 09:47:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1872 states have (on average 1.607905982905983) internal successors, (3010), 1873 states have internal predecessors, (3010), 0 states have call successors, (0), 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 09:47:52,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 3010 transitions. [2024-11-16 09:47:52,369 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 3010 transitions. Word has length 83 [2024-11-16 09:47:52,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,370 INFO L471 AbstractCegarLoop]: Abstraction has 1874 states and 3010 transitions. [2024-11-16 09:47:52,371 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 09:47:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 3010 transitions. [2024-11-16 09:47:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:52,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,372 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 09:47:52,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:47:52,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1268772337, now seen corresponding path program 1 times [2024-11-16 09:47:52,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142615431] [2024-11-16 09:47:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,430 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 09:47:52,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142615431] [2024-11-16 09:47:52,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142615431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378994414] [2024-11-16 09:47:52,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,433 INFO L87 Difference]: Start difference. First operand 1874 states and 3010 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 09:47:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,484 INFO L93 Difference]: Finished difference Result 2464 states and 3932 transitions. [2024-11-16 09:47:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:52,485 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 09:47:52,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,491 INFO L225 Difference]: With dead ends: 2464 [2024-11-16 09:47:52,491 INFO L226 Difference]: Without dead ends: 2157 [2024-11-16 09:47:52,493 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 09:47:52,494 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 09:47:52,494 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 09:47:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-16 09:47:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2154. [2024-11-16 09:47:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2152 states have (on average 1.5994423791821561) internal successors, (3442), 2153 states have internal predecessors, (3442), 0 states have call successors, (0), 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 09:47:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 3442 transitions. [2024-11-16 09:47:52,539 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 3442 transitions. Word has length 83 [2024-11-16 09:47:52,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,540 INFO L471 AbstractCegarLoop]: Abstraction has 2154 states and 3442 transitions. [2024-11-16 09:47:52,540 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 09:47:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 3442 transitions. [2024-11-16 09:47:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:52,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,541 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 09:47:52,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:47:52,541 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2041313137, now seen corresponding path program 1 times [2024-11-16 09:47:52,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955210086] [2024-11-16 09:47:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,605 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 09:47:52,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955210086] [2024-11-16 09:47:52,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955210086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866018961] [2024-11-16 09:47:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,607 INFO L87 Difference]: Start difference. First operand 2154 states and 3442 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 09:47:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,648 INFO L93 Difference]: Finished difference Result 3280 states and 5186 transitions. [2024-11-16 09:47:52,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:52,649 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 09:47:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,655 INFO L225 Difference]: With dead ends: 3280 [2024-11-16 09:47:52,656 INFO L226 Difference]: Without dead ends: 2693 [2024-11-16 09:47:52,657 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 09:47:52,658 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 09:47:52,659 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 09:47:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2024-11-16 09:47:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2690. [2024-11-16 09:47:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 2688 states have (on average 1.584077380952381) internal successors, (4258), 2689 states have internal predecessors, (4258), 0 states have call successors, (0), 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 09:47:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 4258 transitions. [2024-11-16 09:47:52,715 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 4258 transitions. Word has length 83 [2024-11-16 09:47:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,715 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 4258 transitions. [2024-11-16 09:47:52,715 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 09:47:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 4258 transitions. [2024-11-16 09:47:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:52,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,717 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 09:47:52,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:47:52,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1252244431, now seen corresponding path program 1 times [2024-11-16 09:47:52,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114318158] [2024-11-16 09:47:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,786 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 09:47:52,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114318158] [2024-11-16 09:47:52,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114318158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882670828] [2024-11-16 09:47:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,792 INFO L87 Difference]: Start difference. First operand 2690 states and 4258 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 09:47:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:52,848 INFO L93 Difference]: Finished difference Result 4840 states and 7550 transitions. [2024-11-16 09:47:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:52,848 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 09:47:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:52,862 INFO L225 Difference]: With dead ends: 4840 [2024-11-16 09:47:52,862 INFO L226 Difference]: Without dead ends: 3717 [2024-11-16 09:47:52,864 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 09:47:52,865 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 09:47:52,865 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 09:47:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2024-11-16 09:47:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3714. [2024-11-16 09:47:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3712 states have (on average 1.5608836206896552) internal successors, (5794), 3713 states have internal predecessors, (5794), 0 states have call successors, (0), 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 09:47:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5794 transitions. [2024-11-16 09:47:52,946 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5794 transitions. Word has length 83 [2024-11-16 09:47:52,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:52,946 INFO L471 AbstractCegarLoop]: Abstraction has 3714 states and 5794 transitions. [2024-11-16 09:47:52,946 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 09:47:52,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5794 transitions. [2024-11-16 09:47:52,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:52,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:52,947 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 09:47:52,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:47:52,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:52,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:52,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1237794575, now seen corresponding path program 1 times [2024-11-16 09:47:52,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:52,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217250302] [2024-11-16 09:47:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:52,996 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 09:47:52,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:52,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217250302] [2024-11-16 09:47:52,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217250302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:52,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:52,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:52,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830583835] [2024-11-16 09:47:52,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:52,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:52,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:52,998 INFO L87 Difference]: Start difference. First operand 3714 states and 5794 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 09:47:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:53,058 INFO L93 Difference]: Finished difference Result 7816 states and 11990 transitions. [2024-11-16 09:47:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:53,059 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 09:47:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:53,073 INFO L225 Difference]: With dead ends: 7816 [2024-11-16 09:47:53,073 INFO L226 Difference]: Without dead ends: 5669 [2024-11-16 09:47:53,077 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 09:47:53,077 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 09:47:53,077 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 09:47:53,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2024-11-16 09:47:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5666. [2024-11-16 09:47:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5666 states, 5664 states have (on average 1.5314265536723164) internal successors, (8674), 5665 states have internal predecessors, (8674), 0 states have call successors, (0), 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 09:47:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5666 states to 5666 states and 8674 transitions. [2024-11-16 09:47:53,184 INFO L78 Accepts]: Start accepts. Automaton has 5666 states and 8674 transitions. Word has length 83 [2024-11-16 09:47:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:53,184 INFO L471 AbstractCegarLoop]: Abstraction has 5666 states and 8674 transitions. [2024-11-16 09:47:53,184 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 09:47:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5666 states and 8674 transitions. [2024-11-16 09:47:53,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:53,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:53,185 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 09:47:53,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:47:53,185 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:53,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:53,186 INFO L85 PathProgramCache]: Analyzing trace with hash -965569969, now seen corresponding path program 1 times [2024-11-16 09:47:53,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:53,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46337279] [2024-11-16 09:47:53,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:53,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:53,229 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 09:47:53,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:53,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46337279] [2024-11-16 09:47:53,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46337279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:53,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:53,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:53,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62138216] [2024-11-16 09:47:53,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:53,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:53,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:53,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:53,231 INFO L87 Difference]: Start difference. First operand 5666 states and 8674 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 09:47:53,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:53,326 INFO L93 Difference]: Finished difference Result 13480 states and 20294 transitions. [2024-11-16 09:47:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:53,326 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 09:47:53,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:53,349 INFO L225 Difference]: With dead ends: 13480 [2024-11-16 09:47:53,349 INFO L226 Difference]: Without dead ends: 9381 [2024-11-16 09:47:53,356 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 09:47:53,357 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 09:47:53,357 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 09:47:53,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9381 states. [2024-11-16 09:47:53,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9381 to 9378. [2024-11-16 09:47:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9378 states, 9376 states have (on average 1.4985068259385665) internal successors, (14050), 9377 states have internal predecessors, (14050), 0 states have call successors, (0), 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 09:47:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9378 states to 9378 states and 14050 transitions. [2024-11-16 09:47:53,635 INFO L78 Accepts]: Start accepts. Automaton has 9378 states and 14050 transitions. Word has length 83 [2024-11-16 09:47:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:53,636 INFO L471 AbstractCegarLoop]: Abstraction has 9378 states and 14050 transitions. [2024-11-16 09:47:53,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:47:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 9378 states and 14050 transitions. [2024-11-16 09:47:53,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:53,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:53,637 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 09:47:53,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:47:53,637 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:53,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:53,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1489847024, now seen corresponding path program 1 times [2024-11-16 09:47:53,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:53,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764417953] [2024-11-16 09:47:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:53,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:53,819 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 09:47:53,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:53,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764417953] [2024-11-16 09:47:53,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764417953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:53,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:53,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:47:53,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056910252] [2024-11-16 09:47:53,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:53,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:47:53,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:47:53,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:47:53,821 INFO L87 Difference]: Start difference. First operand 9378 states and 14050 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 09:47:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:53,931 INFO L93 Difference]: Finished difference Result 9765 states and 14564 transitions. [2024-11-16 09:47:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:47:53,931 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 09:47:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:53,946 INFO L225 Difference]: With dead ends: 9765 [2024-11-16 09:47:53,947 INFO L226 Difference]: Without dead ends: 9762 [2024-11-16 09:47:53,950 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 09:47:53,950 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 09:47:53,950 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 09:47:53,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9762 states. [2024-11-16 09:47:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9762 to 9762. [2024-11-16 09:47:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9762 states, 9760 states have (on average 1.4756147540983606) internal successors, (14402), 9761 states have internal predecessors, (14402), 0 states have call successors, (0), 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 09:47:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9762 states to 9762 states and 14402 transitions. [2024-11-16 09:47:54,123 INFO L78 Accepts]: Start accepts. Automaton has 9762 states and 14402 transitions. Word has length 83 [2024-11-16 09:47:54,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:54,123 INFO L471 AbstractCegarLoop]: Abstraction has 9762 states and 14402 transitions. [2024-11-16 09:47:54,124 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 09:47:54,124 INFO L276 IsEmpty]: Start isEmpty. Operand 9762 states and 14402 transitions. [2024-11-16 09:47:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:47:54,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:54,125 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 09:47:54,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:47:54,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:54,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1759238833, now seen corresponding path program 1 times [2024-11-16 09:47:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:54,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12573057] [2024-11-16 09:47:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:54,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:54,176 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 09:47:54,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:54,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12573057] [2024-11-16 09:47:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12573057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:54,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:47:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781120912] [2024-11-16 09:47:54,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:54,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:54,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:54,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:54,178 INFO L87 Difference]: Start difference. First operand 9762 states and 14402 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 09:47:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:54,389 INFO L93 Difference]: Finished difference Result 25384 states and 36806 transitions. [2024-11-16 09:47:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:54,390 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 09:47:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:54,412 INFO L225 Difference]: With dead ends: 25384 [2024-11-16 09:47:54,412 INFO L226 Difference]: Without dead ends: 17189 [2024-11-16 09:47:54,419 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 09:47:54,420 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 09:47:54,421 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 09:47:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17189 states. [2024-11-16 09:47:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17189 to 17186. [2024-11-16 09:47:54,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17186 states, 17184 states have (on average 1.4395949720670391) internal successors, (24738), 17185 states have internal predecessors, (24738), 0 states have call successors, (0), 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 09:47:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17186 states to 17186 states and 24738 transitions. [2024-11-16 09:47:54,723 INFO L78 Accepts]: Start accepts. Automaton has 17186 states and 24738 transitions. Word has length 83 [2024-11-16 09:47:54,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:54,724 INFO L471 AbstractCegarLoop]: Abstraction has 17186 states and 24738 transitions. [2024-11-16 09:47:54,724 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 09:47:54,724 INFO L276 IsEmpty]: Start isEmpty. Operand 17186 states and 24738 transitions. [2024-11-16 09:47:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:47:54,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:54,725 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:47:54,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:47:54,725 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:54,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 617495378, now seen corresponding path program 1 times [2024-11-16 09:47:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:54,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336729574] [2024-11-16 09:47:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:54,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:54,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336729574] [2024-11-16 09:47:54,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336729574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:47:54,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780372042] [2024-11-16 09:47:54,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:54,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:47:54,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:47:54,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:47:54,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:47:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:54,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 09:47:54,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:47:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:54,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:47:54,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780372042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:54,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:47:54,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 09:47:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810083861] [2024-11-16 09:47:54,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:54,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:54,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:54,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:54,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:47:54,999 INFO L87 Difference]: Start difference. First operand 17186 states and 24738 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 09:47:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:47:57,461 INFO L93 Difference]: Finished difference Result 20197 states and 29670 transitions. [2024-11-16 09:47:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:47:57,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 98 [2024-11-16 09:47:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:47:57,485 INFO L225 Difference]: With dead ends: 20197 [2024-11-16 09:47:57,486 INFO L226 Difference]: Without dead ends: 18690 [2024-11-16 09:47:57,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:47:57,491 INFO L432 NwaCegarLoop]: 1298 mSDtfsCounter, 745 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:47:57,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1454 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 09:47:57,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18690 states. [2024-11-16 09:47:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18690 to 18690. [2024-11-16 09:47:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18690 states, 18688 states have (on average 1.4392123287671232) internal successors, (26896), 18689 states have internal predecessors, (26896), 0 states have call successors, (0), 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 09:47:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18690 states to 18690 states and 26896 transitions. [2024-11-16 09:47:57,855 INFO L78 Accepts]: Start accepts. Automaton has 18690 states and 26896 transitions. Word has length 98 [2024-11-16 09:47:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:47:57,856 INFO L471 AbstractCegarLoop]: Abstraction has 18690 states and 26896 transitions. [2024-11-16 09:47:57,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 09:47:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 18690 states and 26896 transitions. [2024-11-16 09:47:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 09:47:57,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:47:57,858 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:47:57,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:47:58,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 09:47:58,059 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:47:58,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:47:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash 422168687, now seen corresponding path program 1 times [2024-11-16 09:47:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:47:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75167736] [2024-11-16 09:47:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:47:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:47:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:47:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:47:58,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:47:58,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75167736] [2024-11-16 09:47:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75167736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:47:58,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:47:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:47:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851476950] [2024-11-16 09:47:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:47:58,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:47:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:47:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:47:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:47:58,145 INFO L87 Difference]: Start difference. First operand 18690 states and 26896 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 09:48:00,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:00,677 INFO L93 Difference]: Finished difference Result 24709 states and 36144 transitions. [2024-11-16 09:48:00,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 09:48:00,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:00,711 INFO L225 Difference]: With dead ends: 24709 [2024-11-16 09:48:00,711 INFO L226 Difference]: Without dead ends: 21698 [2024-11-16 09:48:00,722 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 09:48:00,723 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 921 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:00,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 596 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 09:48:00,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21698 states. [2024-11-16 09:48:00,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21698 to 21698. [2024-11-16 09:48:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21698 states, 21696 states have (on average 1.4071257374631267) internal successors, (30529), 21697 states have internal predecessors, (30529), 0 states have call successors, (0), 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 09:48:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21698 states to 21698 states and 30529 transitions. [2024-11-16 09:48:01,017 INFO L78 Accepts]: Start accepts. Automaton has 21698 states and 30529 transitions. Word has length 101 [2024-11-16 09:48:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:01,017 INFO L471 AbstractCegarLoop]: Abstraction has 21698 states and 30529 transitions. [2024-11-16 09:48:01,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 09:48:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 21698 states and 30529 transitions. [2024-11-16 09:48:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:01,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:01,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:48:01,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:48:01,022 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:01,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:01,022 INFO L85 PathProgramCache]: Analyzing trace with hash -581603957, now seen corresponding path program 1 times [2024-11-16 09:48:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:01,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423645243] [2024-11-16 09:48:01,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:01,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:48:01,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:01,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423645243] [2024-11-16 09:48:01,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423645243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:01,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:01,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642398993] [2024-11-16 09:48:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:01,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:48:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:01,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:48:01,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:48:01,262 INFO L87 Difference]: Start difference. First operand 21698 states and 30529 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 09:48:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:03,403 INFO L93 Difference]: Finished difference Result 28469 states and 39659 transitions. [2024-11-16 09:48:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:48:03,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 09:48:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:03,431 INFO L225 Difference]: With dead ends: 28469 [2024-11-16 09:48:03,431 INFO L226 Difference]: Without dead ends: 22450 [2024-11-16 09:48:03,442 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 09:48:03,443 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 1030 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:03,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1467 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:48:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22450 states. [2024-11-16 09:48:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22450 to 22450. [2024-11-16 09:48:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22450 states, 22448 states have (on average 1.3937544547398433) internal successors, (31287), 22449 states have internal predecessors, (31287), 0 states have call successors, (0), 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 09:48:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22450 states to 22450 states and 31287 transitions. [2024-11-16 09:48:03,855 INFO L78 Accepts]: Start accepts. Automaton has 22450 states and 31287 transitions. Word has length 108 [2024-11-16 09:48:03,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:03,855 INFO L471 AbstractCegarLoop]: Abstraction has 22450 states and 31287 transitions. [2024-11-16 09:48:03,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 09:48:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 22450 states and 31287 transitions. [2024-11-16 09:48:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:03,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:03,859 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 09:48:03,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:48:03,859 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:03,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash 903466145, now seen corresponding path program 1 times [2024-11-16 09:48:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:03,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502340927] [2024-11-16 09:48:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:04,010 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 09:48:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502340927] [2024-11-16 09:48:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502340927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:04,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:04,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:04,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666032227] [2024-11-16 09:48:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:04,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:04,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:04,012 INFO L87 Difference]: Start difference. First operand 22450 states and 31287 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 09:48:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:05,293 INFO L93 Difference]: Finished difference Result 130442 states and 184711 transitions. [2024-11-16 09:48:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:05,293 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 09:48:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:05,438 INFO L225 Difference]: With dead ends: 130442 [2024-11-16 09:48:05,439 INFO L226 Difference]: Without dead ends: 119431 [2024-11-16 09:48:05,476 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 09:48:05,477 INFO L432 NwaCegarLoop]: 1678 mSDtfsCounter, 9905 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9905 SdHoareTripleChecker+Valid, 4639 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:05,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9905 Valid, 4639 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119431 states. [2024-11-16 09:48:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119431 to 35826. [2024-11-16 09:48:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35826 states, 35824 states have (on average 1.3985875390799465) internal successors, (50103), 35825 states have internal predecessors, (50103), 0 states have call successors, (0), 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 09:48:06,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35826 states to 35826 states and 50103 transitions. [2024-11-16 09:48:06,995 INFO L78 Accepts]: Start accepts. Automaton has 35826 states and 50103 transitions. Word has length 108 [2024-11-16 09:48:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:06,995 INFO L471 AbstractCegarLoop]: Abstraction has 35826 states and 50103 transitions. [2024-11-16 09:48:06,995 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 09:48:06,995 INFO L276 IsEmpty]: Start isEmpty. Operand 35826 states and 50103 transitions. [2024-11-16 09:48:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:07,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:07,001 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 09:48:07,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:48:07,001 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:07,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2011566049, now seen corresponding path program 1 times [2024-11-16 09:48:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965323098] [2024-11-16 09:48:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:07,146 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 09:48:07,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:07,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965323098] [2024-11-16 09:48:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965323098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:07,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:07,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:07,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211469053] [2024-11-16 09:48:07,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:07,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:07,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:07,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:07,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:07,148 INFO L87 Difference]: Start difference. First operand 35826 states and 50103 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 09:48:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:09,545 INFO L93 Difference]: Finished difference Result 146058 states and 206791 transitions. [2024-11-16 09:48:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:09,546 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 09:48:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:09,702 INFO L225 Difference]: With dead ends: 146058 [2024-11-16 09:48:09,702 INFO L226 Difference]: Without dead ends: 130439 [2024-11-16 09:48:09,738 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 09:48:09,739 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 09:48:09,739 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 09:48:09,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130439 states. [2024-11-16 09:48:11,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130439 to 56946. [2024-11-16 09:48:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56946 states, 56944 states have (on average 1.4013592301208204) internal successors, (79799), 56945 states have internal predecessors, (79799), 0 states have call successors, (0), 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 09:48:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56946 states to 56946 states and 79799 transitions. [2024-11-16 09:48:11,438 INFO L78 Accepts]: Start accepts. Automaton has 56946 states and 79799 transitions. Word has length 108 [2024-11-16 09:48:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:11,438 INFO L471 AbstractCegarLoop]: Abstraction has 56946 states and 79799 transitions. [2024-11-16 09:48:11,438 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 09:48:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand 56946 states and 79799 transitions. [2024-11-16 09:48:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:11,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:11,445 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 09:48:11,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:48:11,445 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:11,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1239025249, now seen corresponding path program 1 times [2024-11-16 09:48:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828123570] [2024-11-16 09:48:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:11,582 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 09:48:11,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:11,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828123570] [2024-11-16 09:48:11,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828123570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:11,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:11,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467977957] [2024-11-16 09:48:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:11,584 INFO L87 Difference]: Start difference. First operand 56946 states and 79799 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 09:48:14,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:14,409 INFO L93 Difference]: Finished difference Result 161674 states and 228807 transitions. [2024-11-16 09:48:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:14,409 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 09:48:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:14,563 INFO L225 Difference]: With dead ends: 161674 [2024-11-16 09:48:14,563 INFO L226 Difference]: Without dead ends: 146055 [2024-11-16 09:48:14,591 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 09:48:14,592 INFO L432 NwaCegarLoop]: 1676 mSDtfsCounter, 9955 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9955 SdHoareTripleChecker+Valid, 4566 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 09:48:14,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9955 Valid, 4566 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146055 states. [2024-11-16 09:48:16,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146055 to 72562. [2024-11-16 09:48:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72562 states, 72560 states have (on average 1.403183572216097) internal successors, (101815), 72561 states have internal predecessors, (101815), 0 states have call successors, (0), 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 09:48:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72562 states to 72562 states and 101815 transitions. [2024-11-16 09:48:17,023 INFO L78 Accepts]: Start accepts. Automaton has 72562 states and 101815 transitions. Word has length 108 [2024-11-16 09:48:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:17,023 INFO L471 AbstractCegarLoop]: Abstraction has 72562 states and 101815 transitions. [2024-11-16 09:48:17,024 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 09:48:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand 72562 states and 101815 transitions. [2024-11-16 09:48:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:17,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:17,030 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 09:48:17,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:48:17,030 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:17,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 237615521, now seen corresponding path program 1 times [2024-11-16 09:48:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:17,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791170864] [2024-11-16 09:48:17,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:17,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:17,166 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 09:48:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:17,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791170864] [2024-11-16 09:48:17,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791170864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:17,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323993375] [2024-11-16 09:48:17,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:17,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:17,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:17,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:17,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:17,168 INFO L87 Difference]: Start difference. First operand 72562 states and 101815 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 09:48:20,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:20,485 INFO L93 Difference]: Finished difference Result 177290 states and 250823 transitions. [2024-11-16 09:48:20,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:20,485 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 09:48:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:20,662 INFO L225 Difference]: With dead ends: 177290 [2024-11-16 09:48:20,662 INFO L226 Difference]: Without dead ends: 161671 [2024-11-16 09:48:20,696 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 09:48:20,698 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 09:48:20,698 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 09:48:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161671 states. [2024-11-16 09:48:23,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161671 to 88178. [2024-11-16 09:48:23,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88178 states, 88176 states have (on average 1.4043617310832879) internal successors, (123831), 88177 states have internal predecessors, (123831), 0 states have call successors, (0), 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 09:48:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88178 states to 88178 states and 123831 transitions. [2024-11-16 09:48:23,513 INFO L78 Accepts]: Start accepts. Automaton has 88178 states and 123831 transitions. Word has length 108 [2024-11-16 09:48:23,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:23,514 INFO L471 AbstractCegarLoop]: Abstraction has 88178 states and 123831 transitions. [2024-11-16 09:48:23,514 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 09:48:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 88178 states and 123831 transitions. [2024-11-16 09:48:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:23,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:23,521 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 09:48:23,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:48:23,522 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:23,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 223165665, now seen corresponding path program 1 times [2024-11-16 09:48:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:23,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396055245] [2024-11-16 09:48:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:23,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:23,715 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 09:48:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:23,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396055245] [2024-11-16 09:48:23,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396055245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:23,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:23,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:23,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869929380] [2024-11-16 09:48:23,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:23,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:23,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:23,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:23,717 INFO L87 Difference]: Start difference. First operand 88178 states and 123831 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 09:48:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:27,633 INFO L93 Difference]: Finished difference Result 192906 states and 272839 transitions. [2024-11-16 09:48:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:27,633 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 09:48:27,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:27,936 INFO L225 Difference]: With dead ends: 192906 [2024-11-16 09:48:27,937 INFO L226 Difference]: Without dead ends: 177287 [2024-11-16 09:48:27,959 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 09:48:27,960 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 10070 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10070 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:27,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10070 Valid, 4495 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:28,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177287 states. [2024-11-16 09:48:30,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177287 to 103794. [2024-11-16 09:48:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103794 states, 103792 states have (on average 1.405185370741483) internal successors, (145847), 103793 states have internal predecessors, (145847), 0 states have call successors, (0), 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 09:48:30,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103794 states to 103794 states and 145847 transitions. [2024-11-16 09:48:30,949 INFO L78 Accepts]: Start accepts. Automaton has 103794 states and 145847 transitions. Word has length 108 [2024-11-16 09:48:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:30,949 INFO L471 AbstractCegarLoop]: Abstraction has 103794 states and 145847 transitions. [2024-11-16 09:48:30,949 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 09:48:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 103794 states and 145847 transitions. [2024-11-16 09:48:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:30,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:30,956 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 09:48:30,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:48:30,957 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:30,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:30,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1980198879, now seen corresponding path program 1 times [2024-11-16 09:48:30,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:30,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800942069] [2024-11-16 09:48:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:30,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:31,088 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 09:48:31,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:31,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800942069] [2024-11-16 09:48:31,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800942069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:31,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:31,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:31,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660009613] [2024-11-16 09:48:31,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:31,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:31,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:31,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:31,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:31,090 INFO L87 Difference]: Start difference. First operand 103794 states and 145847 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)