./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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.UNBOUNDED.pals+Problem12_label07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdba2ae989c969b8ea983da7229bdc32604e4ef890fc1d03498078fc576fe644 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 16:16:40,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 16:16:40,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 16:16:40,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 16:16:40,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 16:16:40,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 16:16:40,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 16:16:40,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 16:16:40,909 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 16:16:40,909 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 16:16:40,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 16:16:40,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 16:16:40,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 16:16:40,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 16:16:40,909 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 16:16:40,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 16:16:40,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 16:16:40,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:16:40,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 16:16:40,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 16:16:40,912 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> fdba2ae989c969b8ea983da7229bdc32604e4ef890fc1d03498078fc576fe644 [2025-03-03 16:16:41,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 16:16:41,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 16:16:41,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 16:16:41,116 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 16:16:41,117 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 16:16:41,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2025-03-03 16:16:42,248 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014df7094/995f40bb2e3e4584b65a9c4dac6919e2/FLAGf28a46a37 [2025-03-03 16:16:42,631 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 16:16:42,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2025-03-03 16:16:42,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014df7094/995f40bb2e3e4584b65a9c4dac6919e2/FLAGf28a46a37 [2025-03-03 16:16:42,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/014df7094/995f40bb2e3e4584b65a9c4dac6919e2 [2025-03-03 16:16:42,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 16:16:42,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 16:16:42,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 16:16:42,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 16:16:42,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 16:16:42,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:16:42" (1/1) ... [2025-03-03 16:16:42,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18185998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:42, skipping insertion in model container [2025-03-03 16:16:42,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:16:42" (1/1) ... [2025-03-03 16:16:42,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 16:16:43,005 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.UNBOUNDED.pals+Problem12_label07.c[20454,20467] [2025-03-03 16:16:43,031 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.UNBOUNDED.pals+Problem12_label07.c[21296,21309] [2025-03-03 16:16:43,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:16:43,420 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 16:16:43,441 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.UNBOUNDED.pals+Problem12_label07.c[20454,20467] [2025-03-03 16:16:43,443 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.UNBOUNDED.pals+Problem12_label07.c[21296,21309] [2025-03-03 16:16:43,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 16:16:43,698 INFO L204 MainTranslator]: Completed translation [2025-03-03 16:16:43,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43 WrapperNode [2025-03-03 16:16:43,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 16:16:43,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 16:16:43,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 16:16:43,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 16:16:43,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:43,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:43,992 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5213 [2025-03-03 16:16:43,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 16:16:43,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 16:16:43,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 16:16:43,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 16:16:44,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,146 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]. [2025-03-03 16:16:44,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,278 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 16:16:44,399 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 16:16:44,399 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 16:16:44,400 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 16:16:44,400 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (1/1) ... [2025-03-03 16:16:44,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 16:16:44,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 16:16:44,425 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) [2025-03-03 16:16:44,430 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 [2025-03-03 16:16:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 16:16:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 16:16:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 16:16:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 16:16:44,541 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 16:16:44,542 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 16:16:47,797 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L5256: havoc calculate_output3_#t~ret47#1; [2025-03-03 16:16:47,798 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2287: havoc calculate_output_#t~ret45#1; [2025-03-03 16:16:47,798 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3766: havoc calculate_output2_#t~ret46#1; [2025-03-03 16:16:47,939 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2025-03-03 16:16:47,940 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 16:16:47,967 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 16:16:47,968 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 16:16:47,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:16:47 BoogieIcfgContainer [2025-03-03 16:16:47,968 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 16:16:47,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 16:16:47,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 16:16:47,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 16:16:47,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:16:42" (1/3) ... [2025-03-03 16:16:47,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75004be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:16:47, skipping insertion in model container [2025-03-03 16:16:47,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:16:43" (2/3) ... [2025-03-03 16:16:47,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75004be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:16:47, skipping insertion in model container [2025-03-03 16:16:47,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:16:47" (3/3) ... [2025-03-03 16:16:47,975 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c [2025-03-03 16:16:47,984 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 16:16:47,990 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label07.c that has 1 procedures, 931 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-03 16:16:48,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 16:16:48,060 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;@db3c39d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 16:16:48,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-03 16:16:48,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9019396551724137) internal successors, (1765), 930 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:48,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-03 16:16:48,070 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:48,070 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:16:48,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:48,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 382261448, now seen corresponding path program 1 times [2025-03-03 16:16:48,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016136364] [2025-03-03 16:16:48,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:48,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-03 16:16:48,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-03 16:16:48,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:48,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:48,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:48,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016136364] [2025-03-03 16:16:48,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016136364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:48,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:48,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 16:16:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657949544] [2025-03-03 16:16:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:48,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:48,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:48,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:48,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:48,276 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9019396551724137) internal successors, (1765), 930 states have internal predecessors, (1765), 0 states have call successors, (0), 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 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:50,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:50,954 INFO L93 Difference]: Finished difference Result 2560 states and 4922 transitions. [2025-03-03 16:16:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:50,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2025-03-03 16:16:50,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:50,976 INFO L225 Difference]: With dead ends: 2560 [2025-03-03 16:16:50,977 INFO L226 Difference]: Without dead ends: 1617 [2025-03-03 16:16:50,983 INFO L434 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 [2025-03-03 16:16:50,987 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 1049 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-03 16:16:50,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 300 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-03 16:16:51,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-03-03 16:16:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2025-03-03 16:16:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1615 states have (on average 1.8637770897832817) internal successors, (3010), 1616 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) [2025-03-03 16:16:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 3010 transitions. [2025-03-03 16:16:51,084 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 3010 transitions. Word has length 7 [2025-03-03 16:16:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:51,085 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 3010 transitions. [2025-03-03 16:16:51,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 3010 transitions. [2025-03-03 16:16:51,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-03 16:16:51,086 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:51,086 INFO L218 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] [2025-03-03 16:16:51,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 16:16:51,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:51,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash 546257197, now seen corresponding path program 1 times [2025-03-03 16:16:51,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:51,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946207568] [2025-03-03 16:16:51,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:51,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:51,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-03 16:16:51,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-03 16:16:51,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:51,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:51,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:51,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946207568] [2025-03-03 16:16:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946207568] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:51,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 16:16:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977045703] [2025-03-03 16:16:51,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:51,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 16:16:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:51,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 16:16:51,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 16:16:51,357 INFO L87 Difference]: Start difference. First operand 1617 states and 3010 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:51,427 INFO L93 Difference]: Finished difference Result 1677 states and 3104 transitions. [2025-03-03 16:16:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 16:16:51,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2025-03-03 16:16:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:51,434 INFO L225 Difference]: With dead ends: 1677 [2025-03-03 16:16:51,434 INFO L226 Difference]: Without dead ends: 1617 [2025-03-03 16:16:51,434 INFO L434 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 [2025-03-03 16:16:51,435 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 0 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6477 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 [2025-03-03 16:16:51,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6477 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:51,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2025-03-03 16:16:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2025-03-03 16:16:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1615 states have (on average 1.8328173374613004) internal successors, (2960), 1616 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:51,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2960 transitions. [2025-03-03 16:16:51,480 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2960 transitions. Word has length 28 [2025-03-03 16:16:51,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:51,480 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2960 transitions. [2025-03-03 16:16:51,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2960 transitions. [2025-03-03 16:16:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-03 16:16:51,486 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:51,486 INFO L218 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] [2025-03-03 16:16:51,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 16:16:51,487 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:51,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1657211218, now seen corresponding path program 1 times [2025-03-03 16:16:51,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:51,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775867945] [2025-03-03 16:16:51,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:51,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:51,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-03 16:16:51,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-03 16:16:51,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:51,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:51,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775867945] [2025-03-03 16:16:51,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775867945] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:51,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:51,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:16:51,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911177421] [2025-03-03 16:16:51,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:51,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:16:51,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:51,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:16:51,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:16:51,789 INFO L87 Difference]: Start difference. First operand 1617 states and 2960 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:52,120 INFO L93 Difference]: Finished difference Result 2401 states and 4220 transitions. [2025-03-03 16:16:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-03 16:16:52,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2025-03-03 16:16:52,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:52,129 INFO L225 Difference]: With dead ends: 2401 [2025-03-03 16:16:52,129 INFO L226 Difference]: Without dead ends: 2345 [2025-03-03 16:16:52,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2025-03-03 16:16:52,131 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 11538 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11538 SdHoareTripleChecker+Valid, 4683 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:16:52,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11538 Valid, 4683 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:16:52,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2025-03-03 16:16:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1671. [2025-03-03 16:16:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1669 states have (on average 1.8256440982624327) internal successors, (3047), 1670 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 3047 transitions. [2025-03-03 16:16:52,168 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 3047 transitions. Word has length 77 [2025-03-03 16:16:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:52,168 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 3047 transitions. [2025-03-03 16:16:52,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:52,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 3047 transitions. [2025-03-03 16:16:52,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-03 16:16:52,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:52,169 INFO L218 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] [2025-03-03 16:16:52,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 16:16:52,170 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:52,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:52,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1973239561, now seen corresponding path program 1 times [2025-03-03 16:16:52,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:52,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890807255] [2025-03-03 16:16:52,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:52,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:52,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-03 16:16:52,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-03 16:16:52,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:52,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:52,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:52,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890807255] [2025-03-03 16:16:52,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890807255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:52,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:52,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068670053] [2025-03-03 16:16:52,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:52,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:52,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:52,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:52,292 INFO L87 Difference]: Start difference. First operand 1671 states and 3047 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2025-03-03 16:16:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:52,327 INFO L93 Difference]: Finished difference Result 1880 states and 3382 transitions. [2025-03-03 16:16:52,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:52,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 [2025-03-03 16:16:52,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:52,335 INFO L225 Difference]: With dead ends: 1880 [2025-03-03 16:16:52,335 INFO L226 Difference]: Without dead ends: 1770 [2025-03-03 16:16:52,336 INFO L434 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 [2025-03-03 16:16:52,337 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 1500 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 16:16:52,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1664 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2025-03-03 16:16:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1766. [2025-03-03 16:16:52,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.812358276643991) internal successors, (3197), 1765 states have internal predecessors, (3197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 3197 transitions. [2025-03-03 16:16:52,375 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 3197 transitions. Word has length 79 [2025-03-03 16:16:52,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:52,376 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 3197 transitions. [2025-03-03 16:16:52,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2025-03-03 16:16:52,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 3197 transitions. [2025-03-03 16:16:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-03 16:16:52,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:52,377 INFO L218 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] [2025-03-03 16:16:52,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 16:16:52,377 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:52,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2005562796, now seen corresponding path program 1 times [2025-03-03 16:16:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188318429] [2025-03-03 16:16:52,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:52,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-03 16:16:52,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-03 16:16:52,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:52,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:52,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:52,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188318429] [2025-03-03 16:16:52,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188318429] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:52,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:52,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:16:52,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097489707] [2025-03-03 16:16:52,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:52,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:16:52,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:52,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:16:52,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:16:52,737 INFO L87 Difference]: Start difference. First operand 1766 states and 3197 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) [2025-03-03 16:16:52,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:52,995 INFO L93 Difference]: Finished difference Result 1973 states and 3525 transitions. [2025-03-03 16:16:52,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:16:52,996 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 [2025-03-03 16:16:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:53,003 INFO L225 Difference]: With dead ends: 1973 [2025-03-03 16:16:53,003 INFO L226 Difference]: Without dead ends: 1768 [2025-03-03 16:16:53,004 INFO L434 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 [2025-03-03 16:16:53,005 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 1562 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:16:53,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 2193 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:16:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2025-03-03 16:16:53,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1766. [2025-03-03 16:16:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1764 states have (on average 1.8112244897959184) internal successors, (3195), 1765 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 3195 transitions. [2025-03-03 16:16:53,040 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 3195 transitions. Word has length 79 [2025-03-03 16:16:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:53,040 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 3195 transitions. [2025-03-03 16:16:53,041 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) [2025-03-03 16:16:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 3195 transitions. [2025-03-03 16:16:53,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-03 16:16:53,041 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:53,041 INFO L218 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] [2025-03-03 16:16:53,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 16:16:53,042 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:53,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:53,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2073442266, now seen corresponding path program 1 times [2025-03-03 16:16:53,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675620200] [2025-03-03 16:16:53,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:53,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:53,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-03 16:16:53,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-03 16:16:53,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:53,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:53,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:53,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675620200] [2025-03-03 16:16:53,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675620200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:53,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:53,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 16:16:53,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094189746] [2025-03-03 16:16:53,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:53,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 16:16:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:53,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 16:16:53,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 16:16:53,286 INFO L87 Difference]: Start difference. First operand 1766 states and 3195 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:53,339 INFO L93 Difference]: Finished difference Result 1774 states and 3204 transitions. [2025-03-03 16:16:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 16:16:53,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2025-03-03 16:16:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:53,346 INFO L225 Difference]: With dead ends: 1774 [2025-03-03 16:16:53,346 INFO L226 Difference]: Without dead ends: 1772 [2025-03-03 16:16:53,347 INFO L434 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 [2025-03-03 16:16:53,347 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 0 mSDsluCounter, 9461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11040 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 [2025-03-03 16:16:53,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11040 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2025-03-03 16:16:53,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2025-03-03 16:16:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1770 states have (on average 1.807909604519774) internal successors, (3200), 1771 states have internal predecessors, (3200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 3200 transitions. [2025-03-03 16:16:53,375 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 3200 transitions. Word has length 80 [2025-03-03 16:16:53,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:53,377 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 3200 transitions. [2025-03-03 16:16:53,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:53,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 3200 transitions. [2025-03-03 16:16:53,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-03 16:16:53,377 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:53,377 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 16:16:53,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 16:16:53,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:53,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:53,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1267836902, now seen corresponding path program 1 times [2025-03-03 16:16:53,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:53,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443098599] [2025-03-03 16:16:53,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:53,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:53,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-03 16:16:53,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-03 16:16:53,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:53,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:53,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:53,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443098599] [2025-03-03 16:16:53,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443098599] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:53,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:53,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:53,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10607433] [2025-03-03 16:16:53,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:53,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 16:16:53,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:53,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 16:16:53,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 16:16:53,525 INFO L87 Difference]: Start difference. First operand 1772 states and 3200 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:57,100 INFO L93 Difference]: Finished difference Result 5537 states and 10206 transitions. [2025-03-03 16:16:57,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 16:16:57,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2025-03-03 16:16:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:57,111 INFO L225 Difference]: With dead ends: 5537 [2025-03-03 16:16:57,111 INFO L226 Difference]: Without dead ends: 4033 [2025-03-03 16:16:57,112 INFO L434 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 [2025-03-03 16:16:57,113 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 2587 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 5147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-03-03 16:16:57,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 345 Invalid, 5147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1535 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-03-03 16:16:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4033 states. [2025-03-03 16:16:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4033 to 4025. [2025-03-03 16:16:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 4023 states have (on average 1.6017897091722595) internal successors, (6444), 4024 states have internal predecessors, (6444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 6444 transitions. [2025-03-03 16:16:57,171 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 6444 transitions. Word has length 80 [2025-03-03 16:16:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:57,171 INFO L471 AbstractCegarLoop]: Abstraction has 4025 states and 6444 transitions. [2025-03-03 16:16:57,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 6444 transitions. [2025-03-03 16:16:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:57,173 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:57,173 INFO L218 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] [2025-03-03 16:16:57,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 16:16:57,173 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:57,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash -607984566, now seen corresponding path program 1 times [2025-03-03 16:16:57,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:57,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584114725] [2025-03-03 16:16:57,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:57,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:57,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:57,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:57,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:57,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:57,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:57,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584114725] [2025-03-03 16:16:57,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584114725] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:57,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:57,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:57,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276236993] [2025-03-03 16:16:57,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:57,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:57,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:57,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:57,227 INFO L87 Difference]: Start difference. First operand 4025 states and 6444 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:57,251 INFO L93 Difference]: Finished difference Result 4431 states and 7076 transitions. [2025-03-03 16:16:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:57,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:57,262 INFO L225 Difference]: With dead ends: 4431 [2025-03-03 16:16:57,262 INFO L226 Difference]: Without dead ends: 4220 [2025-03-03 16:16:57,263 INFO L434 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 [2025-03-03 16:16:57,264 INFO L435 NwaCegarLoop]: 1652 mSDtfsCounter, 1517 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1747 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 [2025-03-03 16:16:57,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1747 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:57,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2025-03-03 16:16:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 4218. [2025-03-03 16:16:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 4216 states have (on average 1.598908918406072) internal successors, (6741), 4217 states have internal predecessors, (6741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 6741 transitions. [2025-03-03 16:16:57,326 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 6741 transitions. Word has length 81 [2025-03-03 16:16:57,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:57,326 INFO L471 AbstractCegarLoop]: Abstraction has 4218 states and 6741 transitions. [2025-03-03 16:16:57,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 6741 transitions. [2025-03-03 16:16:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:57,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:57,327 INFO L218 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] [2025-03-03 16:16:57,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 16:16:57,327 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:57,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:57,328 INFO L85 PathProgramCache]: Analyzing trace with hash -762353398, now seen corresponding path program 1 times [2025-03-03 16:16:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:57,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961288287] [2025-03-03 16:16:57,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:57,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:57,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:57,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:57,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:57,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:57,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961288287] [2025-03-03 16:16:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961288287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:57,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458569509] [2025-03-03 16:16:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:57,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:57,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:57,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:57,384 INFO L87 Difference]: Start difference. First operand 4218 states and 6741 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:57,411 INFO L93 Difference]: Finished difference Result 4994 states and 7939 transitions. [2025-03-03 16:16:57,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:57,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:57,431 INFO L225 Difference]: With dead ends: 4994 [2025-03-03 16:16:57,431 INFO L226 Difference]: Without dead ends: 4590 [2025-03-03 16:16:57,433 INFO L434 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 [2025-03-03 16:16:57,433 INFO L435 NwaCegarLoop]: 1650 mSDtfsCounter, 1515 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1749 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 [2025-03-03 16:16:57,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1749 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2025-03-03 16:16:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4588. [2025-03-03 16:16:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 4586 states have (on average 1.5924552987352814) internal successors, (7303), 4587 states have internal predecessors, (7303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 7303 transitions. [2025-03-03 16:16:57,506 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 7303 transitions. Word has length 81 [2025-03-03 16:16:57,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:57,506 INFO L471 AbstractCegarLoop]: Abstraction has 4588 states and 7303 transitions. [2025-03-03 16:16:57,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 7303 transitions. [2025-03-03 16:16:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:57,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:57,508 INFO L218 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] [2025-03-03 16:16:57,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 16:16:57,509 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:57,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1741283894, now seen corresponding path program 1 times [2025-03-03 16:16:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:57,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766174027] [2025-03-03 16:16:57,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:57,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:57,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:57,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:57,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:57,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:57,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766174027] [2025-03-03 16:16:57,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766174027] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:57,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:57,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:57,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902157806] [2025-03-03 16:16:57,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:57,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:57,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:57,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:57,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:57,564 INFO L87 Difference]: Start difference. First operand 4588 states and 7303 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:57,596 INFO L93 Difference]: Finished difference Result 6072 states and 9569 transitions. [2025-03-03 16:16:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:57,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:57,606 INFO L225 Difference]: With dead ends: 6072 [2025-03-03 16:16:57,606 INFO L226 Difference]: Without dead ends: 5298 [2025-03-03 16:16:57,608 INFO L434 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 [2025-03-03 16:16:57,609 INFO L435 NwaCegarLoop]: 1648 mSDtfsCounter, 1513 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1751 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 [2025-03-03 16:16:57,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1751 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:57,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2025-03-03 16:16:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 5296. [2025-03-03 16:16:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5294 states have (on average 1.5797128825085003) internal successors, (8363), 5295 states have internal predecessors, (8363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 8363 transitions. [2025-03-03 16:16:57,704 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 8363 transitions. Word has length 81 [2025-03-03 16:16:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:57,704 INFO L471 AbstractCegarLoop]: Abstraction has 5296 states and 8363 transitions. [2025-03-03 16:16:57,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 8363 transitions. [2025-03-03 16:16:57,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:57,705 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:57,705 INFO L218 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] [2025-03-03 16:16:57,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 16:16:57,706 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:57,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2105737866, now seen corresponding path program 1 times [2025-03-03 16:16:57,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:57,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606805742] [2025-03-03 16:16:57,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:57,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:57,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:57,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:57,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:57,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:57,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606805742] [2025-03-03 16:16:57,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606805742] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:57,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:57,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:57,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590095224] [2025-03-03 16:16:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:57,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:57,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:57,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:57,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:57,758 INFO L87 Difference]: Start difference. First operand 5296 states and 8363 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:57,809 INFO L93 Difference]: Finished difference Result 8132 states and 12637 transitions. [2025-03-03 16:16:57,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:57,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:57,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:57,819 INFO L225 Difference]: With dead ends: 8132 [2025-03-03 16:16:57,820 INFO L226 Difference]: Without dead ends: 6650 [2025-03-03 16:16:57,823 INFO L434 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 [2025-03-03 16:16:57,824 INFO L435 NwaCegarLoop]: 1646 mSDtfsCounter, 1511 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1753 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 [2025-03-03 16:16:57,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2025-03-03 16:16:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 6648. [2025-03-03 16:16:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6648 states, 6646 states have (on average 1.5580800481492627) internal successors, (10355), 6647 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6648 states to 6648 states and 10355 transitions. [2025-03-03 16:16:57,966 INFO L78 Accepts]: Start accepts. Automaton has 6648 states and 10355 transitions. Word has length 81 [2025-03-03 16:16:57,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:57,966 INFO L471 AbstractCegarLoop]: Abstraction has 6648 states and 10355 transitions. [2025-03-03 16:16:57,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6648 states and 10355 transitions. [2025-03-03 16:16:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:57,968 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:57,968 INFO L218 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] [2025-03-03 16:16:57,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 16:16:57,968 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:57,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1774053558, now seen corresponding path program 1 times [2025-03-03 16:16:57,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:57,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993212543] [2025-03-03 16:16:57,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:57,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:57,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:57,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:57,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:57,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:58,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993212543] [2025-03-03 16:16:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993212543] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:58,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943038294] [2025-03-03 16:16:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:58,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:58,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:58,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:58,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:58,022 INFO L87 Difference]: Start difference. First operand 6648 states and 10355 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:58,088 INFO L93 Difference]: Finished difference Result 12060 states and 18389 transitions. [2025-03-03 16:16:58,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:58,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:58,103 INFO L225 Difference]: With dead ends: 12060 [2025-03-03 16:16:58,103 INFO L226 Difference]: Without dead ends: 9226 [2025-03-03 16:16:58,108 INFO L434 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 [2025-03-03 16:16:58,109 INFO L435 NwaCegarLoop]: 1644 mSDtfsCounter, 1509 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1755 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 [2025-03-03 16:16:58,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1755 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9226 states. [2025-03-03 16:16:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9226 to 9224. [2025-03-03 16:16:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9224 states, 9222 states have (on average 1.527109086965951) internal successors, (14083), 9223 states have internal predecessors, (14083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 14083 transitions. [2025-03-03 16:16:58,248 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 14083 transitions. Word has length 81 [2025-03-03 16:16:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:58,248 INFO L471 AbstractCegarLoop]: Abstraction has 9224 states and 14083 transitions. [2025-03-03 16:16:58,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 14083 transitions. [2025-03-03 16:16:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-03 16:16:58,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:58,249 INFO L218 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] [2025-03-03 16:16:58,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 16:16:58,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:58,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:58,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2034195466, now seen corresponding path program 1 times [2025-03-03 16:16:58,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:58,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976176355] [2025-03-03 16:16:58,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:58,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:58,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-03 16:16:58,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-03 16:16:58,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:58,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:58,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:58,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976176355] [2025-03-03 16:16:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976176355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:58,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21905001] [2025-03-03 16:16:58,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:58,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:58,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:58,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:58,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:58,297 INFO L87 Difference]: Start difference. First operand 9224 states and 14083 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:58,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:58,406 INFO L93 Difference]: Finished difference Result 19532 states and 29125 transitions. [2025-03-03 16:16:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:58,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2025-03-03 16:16:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:58,431 INFO L225 Difference]: With dead ends: 19532 [2025-03-03 16:16:58,431 INFO L226 Difference]: Without dead ends: 14122 [2025-03-03 16:16:58,441 INFO L434 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 [2025-03-03 16:16:58,442 INFO L435 NwaCegarLoop]: 1642 mSDtfsCounter, 1507 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1757 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 [2025-03-03 16:16:58,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1757 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2025-03-03 16:16:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14120. [2025-03-03 16:16:58,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14120 states, 14118 states have (on average 1.4893752656183596) internal successors, (21027), 14119 states have internal predecessors, (21027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:58,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14120 states to 14120 states and 21027 transitions. [2025-03-03 16:16:58,777 INFO L78 Accepts]: Start accepts. Automaton has 14120 states and 21027 transitions. Word has length 81 [2025-03-03 16:16:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:58,777 INFO L471 AbstractCegarLoop]: Abstraction has 14120 states and 21027 transitions. [2025-03-03 16:16:58,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2025-03-03 16:16:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14120 states and 21027 transitions. [2025-03-03 16:16:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-03 16:16:58,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:58,779 INFO L218 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] [2025-03-03 16:16:58,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 16:16:58,779 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:58,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:58,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1506966134, now seen corresponding path program 1 times [2025-03-03 16:16:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:58,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247303626] [2025-03-03 16:16:58,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:58,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:58,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-03 16:16:58,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-03 16:16:58,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:58,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 16:16:58,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247303626] [2025-03-03 16:16:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247303626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:58,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 16:16:58,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916810579] [2025-03-03 16:16:58,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:58,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 16:16:58,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:58,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 16:16:58,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 16:16:58,837 INFO L87 Difference]: Start difference. First operand 14120 states and 21027 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) [2025-03-03 16:16:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:16:58,982 INFO L93 Difference]: Finished difference Result 24879 states and 36777 transitions. [2025-03-03 16:16:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 16:16:58,983 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 [2025-03-03 16:16:58,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:16:59,014 INFO L225 Difference]: With dead ends: 24879 [2025-03-03 16:16:59,014 INFO L226 Difference]: Without dead ends: 19116 [2025-03-03 16:16:59,025 INFO L434 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 [2025-03-03 16:16:59,025 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 1516 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1748 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 [2025-03-03 16:16:59,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 16:16:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19116 states. [2025-03-03 16:16:59,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19116 to 19114. [2025-03-03 16:16:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19114 states, 19112 states have (on average 1.4720071159480954) internal successors, (28133), 19113 states have internal predecessors, (28133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:16:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19114 states to 19114 states and 28133 transitions. [2025-03-03 16:16:59,407 INFO L78 Accepts]: Start accepts. Automaton has 19114 states and 28133 transitions. Word has length 83 [2025-03-03 16:16:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:16:59,408 INFO L471 AbstractCegarLoop]: Abstraction has 19114 states and 28133 transitions. [2025-03-03 16:16:59,408 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) [2025-03-03 16:16:59,408 INFO L276 IsEmpty]: Start isEmpty. Operand 19114 states and 28133 transitions. [2025-03-03 16:16:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:16:59,412 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:16:59,412 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:16:59,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 16:16:59,412 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:16:59,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:16:59,413 INFO L85 PathProgramCache]: Analyzing trace with hash 113999974, now seen corresponding path program 1 times [2025-03-03 16:16:59,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:16:59,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893131221] [2025-03-03 16:16:59,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:16:59,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:16:59,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:16:59,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:16:59,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:16:59,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:16:59,600 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-03 16:16:59,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:16:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893131221] [2025-03-03 16:16:59,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893131221] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:16:59,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:16:59,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:16:59,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768246156] [2025-03-03 16:16:59,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:16:59,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:16:59,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:16:59,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:16:59,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:16:59,602 INFO L87 Difference]: Start difference. First operand 19114 states and 28133 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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) [2025-03-03 16:17:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:17:00,777 INFO L93 Difference]: Finished difference Result 129338 states and 186605 transitions. [2025-03-03 16:17:00,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:17:00,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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 104 [2025-03-03 16:17:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:17:00,994 INFO L225 Difference]: With dead ends: 129338 [2025-03-03 16:17:00,994 INFO L226 Difference]: Without dead ends: 114040 [2025-03-03 16:17:01,024 INFO L434 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 [2025-03-03 16:17:01,025 INFO L435 NwaCegarLoop]: 1678 mSDtfsCounter, 9830 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9830 SdHoareTripleChecker+Valid, 4601 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:17:01,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9830 Valid, 4601 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:17:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114040 states. [2025-03-03 16:17:02,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114040 to 34410. [2025-03-03 16:17:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34410 states, 34408 states have (on average 1.4519007207626133) internal successors, (49957), 34409 states have internal predecessors, (49957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34410 states to 34410 states and 49957 transitions. [2025-03-03 16:17:02,489 INFO L78 Accepts]: Start accepts. Automaton has 34410 states and 49957 transitions. Word has length 104 [2025-03-03 16:17:02,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:17:02,489 INFO L471 AbstractCegarLoop]: Abstraction has 34410 states and 49957 transitions. [2025-03-03 16:17:02,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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) [2025-03-03 16:17:02,489 INFO L276 IsEmpty]: Start isEmpty. Operand 34410 states and 49957 transitions. [2025-03-03 16:17:02,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:17:02,495 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:17:02,495 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:17:02,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 16:17:02,495 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:17:02,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:17:02,495 INFO L85 PathProgramCache]: Analyzing trace with hash -40368858, now seen corresponding path program 1 times [2025-03-03 16:17:02,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:17:02,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976666315] [2025-03-03 16:17:02,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:17:02,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:17:02,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:17:02,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:17:02,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:17:02,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:17:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-03 16:17:02,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:17:02,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976666315] [2025-03-03 16:17:02,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976666315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:17:02,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:17:02,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:17:02,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389688424] [2025-03-03 16:17:02,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:17:02,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:17:02,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:17:02,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:17:02,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:17:02,714 INFO L87 Difference]: Start difference. First operand 34410 states and 49957 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:17:04,547 INFO L93 Difference]: Finished difference Result 144634 states and 208429 transitions. [2025-03-03 16:17:04,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:17:04,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-03 16:17:04,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:17:04,718 INFO L225 Difference]: With dead ends: 144634 [2025-03-03 16:17:04,718 INFO L226 Difference]: Without dead ends: 129336 [2025-03-03 16:17:04,749 INFO L434 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 [2025-03-03 16:17:04,750 INFO L435 NwaCegarLoop]: 1675 mSDtfsCounter, 9851 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9851 SdHoareTripleChecker+Valid, 4497 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:17:04,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9851 Valid, 4497 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:17:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129336 states. [2025-03-03 16:17:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129336 to 57386. [2025-03-03 16:17:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57386 states, 57384 states have (on average 1.4382580510246759) internal successors, (82533), 57385 states have internal predecessors, (82533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57386 states to 57386 states and 82533 transitions. [2025-03-03 16:17:06,280 INFO L78 Accepts]: Start accepts. Automaton has 57386 states and 82533 transitions. Word has length 104 [2025-03-03 16:17:06,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:17:06,281 INFO L471 AbstractCegarLoop]: Abstraction has 57386 states and 82533 transitions. [2025-03-03 16:17:06,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand 57386 states and 82533 transitions. [2025-03-03 16:17:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:17:06,286 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:17:06,286 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:17:06,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-03 16:17:06,287 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:17:06,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:17:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1019299354, now seen corresponding path program 1 times [2025-03-03 16:17:06,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:17:06,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838711691] [2025-03-03 16:17:06,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:17:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:17:06,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:17:06,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:17:06,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:17:06,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:17:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-03 16:17:06,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:17:06,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838711691] [2025-03-03 16:17:06,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838711691] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:17:06,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:17:06,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:17:06,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092261452] [2025-03-03 16:17:06,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:17:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:17:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:17:06,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:17:06,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:17:06,673 INFO L87 Difference]: Start difference. First operand 57386 states and 82533 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:17:09,698 INFO L93 Difference]: Finished difference Result 159930 states and 230253 transitions. [2025-03-03 16:17:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:17:09,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 104 [2025-03-03 16:17:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:17:09,916 INFO L225 Difference]: With dead ends: 159930 [2025-03-03 16:17:09,917 INFO L226 Difference]: Without dead ends: 144632 [2025-03-03 16:17:09,973 INFO L434 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 [2025-03-03 16:17:09,974 INFO L435 NwaCegarLoop]: 1672 mSDtfsCounter, 9896 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9896 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:17:09,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9896 Valid, 4390 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:17:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144632 states. [2025-03-03 16:17:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144632 to 72682. [2025-03-03 16:17:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72682 states, 72680 states have (on average 1.435842047330765) internal successors, (104357), 72681 states have internal predecessors, (104357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:12,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72682 states to 72682 states and 104357 transitions. [2025-03-03 16:17:12,103 INFO L78 Accepts]: Start accepts. Automaton has 72682 states and 104357 transitions. Word has length 104 [2025-03-03 16:17:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:17:12,104 INFO L471 AbstractCegarLoop]: Abstraction has 72682 states and 104357 transitions. [2025-03-03 16:17:12,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 72682 states and 104357 transitions. [2025-03-03 16:17:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:17:12,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:17:12,110 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:17:12,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-03 16:17:12,111 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:17:12,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:17:12,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1467244890, now seen corresponding path program 1 times [2025-03-03 16:17:12,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:17:12,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30127315] [2025-03-03 16:17:12,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:17:12,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:17:12,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:17:12,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:17:12,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:17:12,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:17:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-03 16:17:12,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:17:12,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30127315] [2025-03-03 16:17:12,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30127315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:17:12,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:17:12,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:17:12,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726407325] [2025-03-03 16:17:12,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:17:12,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:17:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:17:12,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:17:12,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:17:12,270 INFO L87 Difference]: Start difference. First operand 72682 states and 104357 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:17:15,684 INFO L93 Difference]: Finished difference Result 175226 states and 252077 transitions. [2025-03-03 16:17:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:17:15,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 104 [2025-03-03 16:17:15,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:17:15,896 INFO L225 Difference]: With dead ends: 175226 [2025-03-03 16:17:15,896 INFO L226 Difference]: Without dead ends: 159928 [2025-03-03 16:17:15,940 INFO L434 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 [2025-03-03 16:17:15,940 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9942 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9942 SdHoareTripleChecker+Valid, 4383 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:17:15,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9942 Valid, 4383 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:17:16,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159928 states. [2025-03-03 16:17:18,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159928 to 87978. [2025-03-03 16:17:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87978 states, 87976 states have (on average 1.434266163499136) internal successors, (126181), 87977 states have internal predecessors, (126181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87978 states to 87978 states and 126181 transitions. [2025-03-03 16:17:18,362 INFO L78 Accepts]: Start accepts. Automaton has 87978 states and 126181 transitions. Word has length 104 [2025-03-03 16:17:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:17:18,363 INFO L471 AbstractCegarLoop]: Abstraction has 87978 states and 126181 transitions. [2025-03-03 16:17:18,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:18,363 INFO L276 IsEmpty]: Start isEmpty. Operand 87978 states and 126181 transitions. [2025-03-03 16:17:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:17:18,368 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:17:18,368 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:17:18,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-03 16:17:18,368 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:17:18,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:17:18,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1052069018, now seen corresponding path program 1 times [2025-03-03 16:17:18,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:17:18,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306171923] [2025-03-03 16:17:18,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:17:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:17:18,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:17:18,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:17:18,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:17:18,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:17:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-03 16:17:18,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:17:18,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306171923] [2025-03-03 16:17:18,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306171923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:17:18,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:17:18,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:17:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054585138] [2025-03-03 16:17:18,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:17:18,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:17:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:17:18,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:17:18,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:17:18,519 INFO L87 Difference]: Start difference. First operand 87978 states and 126181 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:22,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 16:17:22,352 INFO L93 Difference]: Finished difference Result 190522 states and 273901 transitions. [2025-03-03 16:17:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 16:17:22,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 104 [2025-03-03 16:17:22,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 16:17:22,623 INFO L225 Difference]: With dead ends: 190522 [2025-03-03 16:17:22,623 INFO L226 Difference]: Without dead ends: 175224 [2025-03-03 16:17:22,689 INFO L434 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 [2025-03-03 16:17:22,689 INFO L435 NwaCegarLoop]: 1666 mSDtfsCounter, 10005 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10005 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 16:17:22,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10005 Valid, 4389 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 16:17:22,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175224 states. [2025-03-03 16:17:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175224 to 103274. [2025-03-03 16:17:25,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103274 states, 103272 states have (on average 1.4331570996978853) internal successors, (148005), 103273 states have internal predecessors, (148005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103274 states to 103274 states and 148005 transitions. [2025-03-03 16:17:25,640 INFO L78 Accepts]: Start accepts. Automaton has 103274 states and 148005 transitions. Word has length 104 [2025-03-03 16:17:25,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 16:17:25,640 INFO L471 AbstractCegarLoop]: Abstraction has 103274 states and 148005 transitions. [2025-03-03 16:17:25,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 16:17:25,640 INFO L276 IsEmpty]: Start isEmpty. Operand 103274 states and 148005 transitions. [2025-03-03 16:17:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 16:17:25,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 16:17:25,645 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-03 16:17:25,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-03 16:17:25,645 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 16:17:25,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 16:17:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1538787290, now seen corresponding path program 1 times [2025-03-03 16:17:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 16:17:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581510077] [2025-03-03 16:17:25,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 16:17:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 16:17:25,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 16:17:25,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 16:17:25,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 16:17:25,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 16:17:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-03 16:17:25,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 16:17:25,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581510077] [2025-03-03 16:17:25,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581510077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 16:17:25,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 16:17:25,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-03 16:17:25,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799489655] [2025-03-03 16:17:25,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 16:17:25,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 16:17:25,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 16:17:25,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 16:17:25,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-03 16:17:25,769 INFO L87 Difference]: Start difference. First operand 103274 states and 148005 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)