./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i -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 aec2cd5ae54508e6b09d164bd3878415d3b0f8002b89da4b1a1ed3f9475eb68f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:18:55,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:18:55,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:18:55,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:18:55,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:18:55,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:18:55,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:18:55,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:18:55,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:18:55,827 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:18:55,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:18:55,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:18:55,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:18:55,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:18:55,829 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:18:55,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:18:55,830 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:18:55,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:18:55,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:18:55,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:18:55,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:18:55,832 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 -> aec2cd5ae54508e6b09d164bd3878415d3b0f8002b89da4b1a1ed3f9475eb68f [2025-03-08 15:18:56,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:18:56,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:18:56,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:18:56,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:18:56,048 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:18:56,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i [2025-03-08 15:18:57,262 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc3c46fc/ffde43ca51a445f6b0c38ae15a3822f5/FLAG93b472d19 [2025-03-08 15:18:57,516 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:18:57,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-14.i [2025-03-08 15:18:57,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc3c46fc/ffde43ca51a445f6b0c38ae15a3822f5/FLAG93b472d19 [2025-03-08 15:18:57,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc3c46fc/ffde43ca51a445f6b0c38ae15a3822f5 [2025-03-08 15:18:57,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:18:57,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:18:57,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:18:57,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:18:57,554 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:18:57,555 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,556 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3867afc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57, skipping insertion in model container [2025-03-08 15:18:57,556 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:18:57,679 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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i[916,929] [2025-03-08 15:18:57,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:18:57,787 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:18:57,794 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/hardness-nfm22/hardness_operatoramount_amount250_file-14.i[916,929] [2025-03-08 15:18:57,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:18:57,883 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:18:57,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57 WrapperNode [2025-03-08 15:18:57,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:18:57,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:18:57,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:18:57,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:18:57,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,956 INFO L138 Inliner]: procedures = 26, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2025-03-08 15:18:57,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:18:57,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:18:57,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:18:57,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:18:57,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:57,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,009 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]. [2025-03-08 15:18:58,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,026 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:18:58,040 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:18:58,040 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:18:58,040 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:18:58,041 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (1/1) ... [2025-03-08 15:18:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:18:58,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:18:58,072 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) [2025-03-08 15:18:58,081 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 [2025-03-08 15:18:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:18:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:18:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:18:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:18:58,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:18:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:18:58,166 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:18:58,168 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:18:58,695 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L354: havoc property_#t~ite38#1;havoc property_#t~bitwise37#1;havoc property_#t~short39#1;havoc property_#t~ite41#1;havoc property_#t~bitwise40#1;havoc property_#t~short42#1;havoc property_#t~bitwise43#1;havoc property_#t~short44#1; [2025-03-08 15:18:58,747 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2025-03-08 15:18:58,749 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:18:58,768 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:18:58,770 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:18:58,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:18:58 BoogieIcfgContainer [2025-03-08 15:18:58,771 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:18:58,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:18:58,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:18:58,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:18:58,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:18:57" (1/3) ... [2025-03-08 15:18:58,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3abde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:18:58, skipping insertion in model container [2025-03-08 15:18:58,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:18:57" (2/3) ... [2025-03-08 15:18:58,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3abde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:18:58, skipping insertion in model container [2025-03-08 15:18:58,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:18:58" (3/3) ... [2025-03-08 15:18:58,779 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-14.i [2025-03-08 15:18:58,789 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:18:58,791 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-14.i that has 2 procedures, 179 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:18:58,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:18:58,849 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;@2ca307ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:18:58,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:18:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 123 states have (on average 1.4634146341463414) internal successors, (180), 124 states have internal predecessors, (180), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-08 15:18:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2025-03-08 15:18:58,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:18:58,876 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:18:58,876 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:18:58,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:18:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1500753303, now seen corresponding path program 1 times [2025-03-08 15:18:58,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:18:58,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442975949] [2025-03-08 15:18:58,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:18:58,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:18:58,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 343 statements into 1 equivalence classes. [2025-03-08 15:18:59,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 343 of 343 statements. [2025-03-08 15:18:59,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:18:59,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:18:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:18:59,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:18:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442975949] [2025-03-08 15:18:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442975949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:18:59,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:18:59,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 15:18:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218770856] [2025-03-08 15:18:59,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:18:59,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 15:18:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:18:59,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 15:18:59,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 15:18:59,525 INFO L87 Difference]: Start difference. First operand has 179 states, 123 states have (on average 1.4634146341463414) internal successors, (180), 124 states have internal predecessors, (180), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:18:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:18:59,669 INFO L93 Difference]: Finished difference Result 515 states and 936 transitions. [2025-03-08 15:18:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 15:18:59,671 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), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 343 [2025-03-08 15:18:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:18:59,681 INFO L225 Difference]: With dead ends: 515 [2025-03-08 15:18:59,681 INFO L226 Difference]: Without dead ends: 339 [2025-03-08 15:18:59,687 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 [2025-03-08 15:18:59,690 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 255 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:18:59,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 701 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:18:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2025-03-08 15:18:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 184. [2025-03-08 15:18:59,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 129 states have (on average 1.434108527131783) internal successors, (185), 129 states have internal predecessors, (185), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-08 15:18:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2025-03-08 15:18:59,747 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 343 [2025-03-08 15:18:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:18:59,751 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2025-03-08 15:18:59,751 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), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:18:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2025-03-08 15:18:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2025-03-08 15:18:59,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:18:59,760 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:18:59,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 15:18:59,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:18:59,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:18:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1246016758, now seen corresponding path program 1 times [2025-03-08 15:18:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:18:59,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038701244] [2025-03-08 15:18:59,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:18:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:18:59,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 343 statements into 1 equivalence classes. [2025-03-08 15:18:59,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 343 of 343 statements. [2025-03-08 15:18:59,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:18:59,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:00,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:00,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038701244] [2025-03-08 15:19:00,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038701244] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:00,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:00,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 15:19:00,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561342616] [2025-03-08 15:19:00,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:00,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 15:19:00,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:00,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 15:19:00,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:19:00,357 INFO L87 Difference]: Start difference. First operand 184 states and 291 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:00,659 INFO L93 Difference]: Finished difference Result 547 states and 868 transitions. [2025-03-08 15:19:00,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 15:19:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 343 [2025-03-08 15:19:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:00,666 INFO L225 Difference]: With dead ends: 547 [2025-03-08 15:19:00,668 INFO L226 Difference]: Without dead ends: 366 [2025-03-08 15:19:00,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:19:00,670 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 203 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:00,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 788 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:19:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-03-08 15:19:00,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 341. [2025-03-08 15:19:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-08 15:19:00,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 546 transitions. [2025-03-08 15:19:00,709 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 546 transitions. Word has length 343 [2025-03-08 15:19:00,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:00,710 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 546 transitions. [2025-03-08 15:19:00,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:00,710 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 546 transitions. [2025-03-08 15:19:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-03-08 15:19:00,713 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:00,713 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:00,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:19:00,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:00,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 168555494, now seen corresponding path program 1 times [2025-03-08 15:19:00,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:00,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695148831] [2025-03-08 15:19:00,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:00,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:00,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-03-08 15:19:00,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-03-08 15:19:00,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:00,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:01,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:01,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695148831] [2025-03-08 15:19:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695148831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:01,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:01,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 15:19:01,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60212918] [2025-03-08 15:19:01,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:01,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 15:19:01,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:01,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 15:19:01,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:19:01,702 INFO L87 Difference]: Start difference. First operand 341 states and 546 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:02,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:02,136 INFO L93 Difference]: Finished difference Result 699 states and 1106 transitions. [2025-03-08 15:19:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 15:19:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-03-08 15:19:02,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:02,144 INFO L225 Difference]: With dead ends: 699 [2025-03-08 15:19:02,144 INFO L226 Difference]: Without dead ends: 492 [2025-03-08 15:19:02,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:19:02,145 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 487 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:02,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 643 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 15:19:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2025-03-08 15:19:02,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 349. [2025-03-08 15:19:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 238 states have (on average 1.4201680672268908) internal successors, (338), 238 states have internal predecessors, (338), 106 states have call successors, (106), 4 states have call predecessors, (106), 4 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-08 15:19:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 550 transitions. [2025-03-08 15:19:02,196 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 550 transitions. Word has length 346 [2025-03-08 15:19:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:02,198 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 550 transitions. [2025-03-08 15:19:02,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 550 transitions. [2025-03-08 15:19:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-03-08 15:19:02,202 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:02,202 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:02,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 15:19:02,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:02,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash 199575301, now seen corresponding path program 1 times [2025-03-08 15:19:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871761593] [2025-03-08 15:19:02,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:02,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-03-08 15:19:02,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-03-08 15:19:02,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:02,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:02,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:02,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871761593] [2025-03-08 15:19:02,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871761593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:02,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:02,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 15:19:02,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222630575] [2025-03-08 15:19:02,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:02,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 15:19:02,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:02,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 15:19:02,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:19:02,730 INFO L87 Difference]: Start difference. First operand 349 states and 550 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:03,137 INFO L93 Difference]: Finished difference Result 909 states and 1439 transitions. [2025-03-08 15:19:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 15:19:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-03-08 15:19:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:03,141 INFO L225 Difference]: With dead ends: 909 [2025-03-08 15:19:03,142 INFO L226 Difference]: Without dead ends: 669 [2025-03-08 15:19:03,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 15:19:03,143 INFO L435 NwaCegarLoop]: 365 mSDtfsCounter, 305 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:03,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1141 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 15:19:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2025-03-08 15:19:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 587. [2025-03-08 15:19:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 421 states have internal predecessors, (611), 159 states have call successors, (159), 6 states have call predecessors, (159), 6 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-03-08 15:19:03,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 929 transitions. [2025-03-08 15:19:03,218 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 929 transitions. Word has length 346 [2025-03-08 15:19:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:03,218 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 929 transitions. [2025-03-08 15:19:03,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 929 transitions. [2025-03-08 15:19:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-03-08 15:19:03,223 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:03,223 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:03,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 15:19:03,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:03,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:03,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1417113947, now seen corresponding path program 1 times [2025-03-08 15:19:03,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:03,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182075504] [2025-03-08 15:19:03,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:03,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-03-08 15:19:03,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-03-08 15:19:03,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:03,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:03,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:03,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182075504] [2025-03-08 15:19:03,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182075504] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:03,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:03,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 15:19:03,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448416304] [2025-03-08 15:19:03,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:03,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 15:19:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:03,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 15:19:03,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 15:19:03,796 INFO L87 Difference]: Start difference. First operand 587 states and 929 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:04,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:04,187 INFO L93 Difference]: Finished difference Result 1136 states and 1791 transitions. [2025-03-08 15:19:04,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 15:19:04,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-03-08 15:19:04,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:04,192 INFO L225 Difference]: With dead ends: 1136 [2025-03-08 15:19:04,192 INFO L226 Difference]: Without dead ends: 897 [2025-03-08 15:19:04,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 15:19:04,193 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 298 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:04,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 885 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 15:19:04,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2025-03-08 15:19:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 782. [2025-03-08 15:19:04,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 561 states have (on average 1.445632798573975) internal successors, (811), 561 states have internal predecessors, (811), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-03-08 15:19:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1235 transitions. [2025-03-08 15:19:04,299 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1235 transitions. Word has length 346 [2025-03-08 15:19:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:04,300 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1235 transitions. [2025-03-08 15:19:04,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1235 transitions. [2025-03-08 15:19:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-03-08 15:19:04,304 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:04,305 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:04,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 15:19:04,305 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:04,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1955169766, now seen corresponding path program 1 times [2025-03-08 15:19:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:04,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599130204] [2025-03-08 15:19:04,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:04,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-03-08 15:19:04,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-03-08 15:19:04,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:04,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:29,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:29,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599130204] [2025-03-08 15:19:29,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599130204] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:29,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:29,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-08 15:19:29,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829024582] [2025-03-08 15:19:29,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:29,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-08 15:19:29,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:29,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-08 15:19:29,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-08 15:19:29,676 INFO L87 Difference]: Start difference. First operand 782 states and 1235 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:30,518 INFO L93 Difference]: Finished difference Result 1816 states and 2821 transitions. [2025-03-08 15:19:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 15:19:30,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 346 [2025-03-08 15:19:30,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:30,525 INFO L225 Difference]: With dead ends: 1816 [2025-03-08 15:19:30,525 INFO L226 Difference]: Without dead ends: 1264 [2025-03-08 15:19:30,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 15:19:30,528 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 193 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:30,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1694 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 15:19:30,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2025-03-08 15:19:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 906. [2025-03-08 15:19:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 685 states have (on average 1.467153284671533) internal successors, (1005), 685 states have internal predecessors, (1005), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-03-08 15:19:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1429 transitions. [2025-03-08 15:19:30,605 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1429 transitions. Word has length 346 [2025-03-08 15:19:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:30,605 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1429 transitions. [2025-03-08 15:19:30,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:19:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1429 transitions. [2025-03-08 15:19:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2025-03-08 15:19:30,608 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:30,609 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:30,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 15:19:30,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:30,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash 958097413, now seen corresponding path program 1 times [2025-03-08 15:19:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536728730] [2025-03-08 15:19:30,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:30,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:30,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes. [2025-03-08 15:19:30,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements. [2025-03-08 15:19:30,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:30,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:19:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:19:53,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:19:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536728730] [2025-03-08 15:19:53,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536728730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:19:53,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:19:53,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 15:19:53,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395553690] [2025-03-08 15:19:53,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:19:53,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 15:19:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:19:53,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 15:19:53,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-03-08 15:19:53,465 INFO L87 Difference]: Start difference. First operand 906 states and 1429 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2025-03-08 15:19:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:19:54,851 INFO L93 Difference]: Finished difference Result 2129 states and 3299 transitions. [2025-03-08 15:19:54,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-08 15:19:54,852 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 346 [2025-03-08 15:19:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:19:54,861 INFO L225 Difference]: With dead ends: 2129 [2025-03-08 15:19:54,861 INFO L226 Difference]: Without dead ends: 1508 [2025-03-08 15:19:54,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2025-03-08 15:19:54,865 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 677 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:19:54,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2020 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 15:19:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2025-03-08 15:19:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 906. [2025-03-08 15:19:54,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 685 states have (on average 1.467153284671533) internal successors, (1005), 685 states have internal predecessors, (1005), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-03-08 15:19:54,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1429 transitions. [2025-03-08 15:19:54,937 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1429 transitions. Word has length 346 [2025-03-08 15:19:54,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:19:54,938 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1429 transitions. [2025-03-08 15:19:54,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 3 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2025-03-08 15:19:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1429 transitions. [2025-03-08 15:19:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2025-03-08 15:19:54,941 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:19:54,941 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:19:54,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 15:19:54,942 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:19:54,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:19:54,943 INFO L85 PathProgramCache]: Analyzing trace with hash -994540105, now seen corresponding path program 1 times [2025-03-08 15:19:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:19:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642881298] [2025-03-08 15:19:54,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:19:54,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:19:54,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-03-08 15:19:55,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-03-08 15:19:55,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:19:55,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:20:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2025-03-08 15:20:17,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:20:17,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642881298] [2025-03-08 15:20:17,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642881298] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:20:17,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:20:17,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 15:20:17,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755156920] [2025-03-08 15:20:17,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:20:17,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 15:20:17,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:20:17,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 15:20:17,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-08 15:20:17,756 INFO L87 Difference]: Start difference. First operand 906 states and 1429 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:20:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:20:18,873 INFO L93 Difference]: Finished difference Result 1969 states and 3061 transitions. [2025-03-08 15:20:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 15:20:18,874 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 347 [2025-03-08 15:20:18,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:20:18,879 INFO L225 Difference]: With dead ends: 1969 [2025-03-08 15:20:18,879 INFO L226 Difference]: Without dead ends: 1348 [2025-03-08 15:20:18,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-08 15:20:18,881 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 205 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:20:18,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1652 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 15:20:18,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2025-03-08 15:20:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 934. [2025-03-08 15:20:18,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 713 states have (on average 1.4726507713884993) internal successors, (1050), 713 states have internal predecessors, (1050), 212 states have call successors, (212), 8 states have call predecessors, (212), 8 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2025-03-08 15:20:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1474 transitions. [2025-03-08 15:20:18,940 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1474 transitions. Word has length 347 [2025-03-08 15:20:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:20:18,941 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1474 transitions. [2025-03-08 15:20:18,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 1 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2025-03-08 15:20:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1474 transitions. [2025-03-08 15:20:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2025-03-08 15:20:18,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:20:18,943 INFO L218 NwaCegarLoop]: trace histogram [53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:20:18,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 15:20:18,943 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:20:18,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:20:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1500098730, now seen corresponding path program 1 times [2025-03-08 15:20:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:20:18,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265681076] [2025-03-08 15:20:18,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:20:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:20:18,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes. [2025-03-08 15:20:19,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements. [2025-03-08 15:20:19,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:20:19,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat