./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label00.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 d9bb0fb3fb89b50a98609e7d92154455ef985195351d080b4795952eedc79161 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:44:08,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:44:08,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:44:08,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:44:08,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:44:08,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:44:08,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:44:08,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:44:08,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:44:08,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:44:08,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:44:08,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:44:08,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:44:08,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:44:08,747 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:44:08,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:44:08,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:44:08,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:44:08,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:44:08,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:44:08,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:44:08,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:44:08,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:44:08,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:44:08,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:44:08,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:44:08,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:44:08,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:44:08,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:44:08,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:44:08,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:44:08,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:44:08,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:44:08,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:44:08,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:44:08,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:44:08,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:44:08,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:44:08,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:44:08,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:44:08,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:44:08,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:44:08,759 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9bb0fb3fb89b50a98609e7d92154455ef985195351d080b4795952eedc79161 [2024-11-16 09:44:08,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:44:08,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:44:08,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:44:08,985 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:44:08,985 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:44:08,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label00.c [2024-11-16 09:44:10,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:44:10,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:44:10,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label00.c [2024-11-16 09:44:10,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dae58a8/bc29c3072b1141bcb7287b6b47f7ee26/FLAGc1ff67578 [2024-11-16 09:44:10,903 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dae58a8/bc29c3072b1141bcb7287b6b47f7ee26 [2024-11-16 09:44:10,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:44:10,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:44:10,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:44:10,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:44:10,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:44:10,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:44:10" (1/1) ... [2024-11-16 09:44:10,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eac7206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:10, skipping insertion in model container [2024-11-16 09:44:10,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:44:10" (1/1) ... [2024-11-16 09:44:11,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:44:11,317 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.6.ufo.BOUNDED-12.pals+Problem12_label00.c[15482,15495] [2024-11-16 09:44:11,354 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.6.ufo.BOUNDED-12.pals+Problem12_label00.c[17357,17370] [2024-11-16 09:44:11,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:44:11,838 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:44:11,877 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.6.ufo.BOUNDED-12.pals+Problem12_label00.c[15482,15495] [2024-11-16 09:44:11,879 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.6.ufo.BOUNDED-12.pals+Problem12_label00.c[17357,17370] [2024-11-16 09:44:12,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:44:12,218 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:44:12,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12 WrapperNode [2024-11-16 09:44:12,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:44:12,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:44:12,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:44:12,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:44:12,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,531 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-16 09:44:12,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:44:12,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:44:12,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:44:12,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:44:12,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,812 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:44:12,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,955 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:12,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:13,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:13,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:13,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:44:13,084 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:44:13,084 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:44:13,084 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:44:13,085 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (1/1) ... [2024-11-16 09:44:13,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:44:13,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:13,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:44:13,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:44:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:44:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:44:13,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:44:13,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:44:13,321 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:44:13,323 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:44:16,556 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3683: havoc calculate_output2_#t~ret43#1; [2024-11-16 09:44:16,556 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5173: havoc calculate_output3_#t~ret44#1; [2024-11-16 09:44:16,556 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2204: havoc calculate_output_#t~ret42#1; [2024-11-16 09:44:16,643 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:44:16,644 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:44:16,673 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:44:16,673 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:44:16,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:44:16 BoogieIcfgContainer [2024-11-16 09:44:16,674 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:44:16,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:44:16,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:44:16,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:44:16,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:44:10" (1/3) ... [2024-11-16 09:44:16,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d24f3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:44:16, skipping insertion in model container [2024-11-16 09:44:16,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:12" (2/3) ... [2024-11-16 09:44:16,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d24f3c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:44:16, skipping insertion in model container [2024-11-16 09:44:16,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:44:16" (3/3) ... [2024-11-16 09:44:16,684 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label00.c [2024-11-16 09:44:16,707 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:44:16,710 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:44:16,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:44:16,814 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;@20de0617, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:44:16,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:44:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 921 states, 918 states have (on average 1.89760348583878) internal successors, (1742), 920 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-16 09:44:16,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:16,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:16,827 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:16,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:16,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1507298601, now seen corresponding path program 1 times [2024-11-16 09:44:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:16,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200257906] [2024-11-16 09:44:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:17,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:17,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200257906] [2024-11-16 09:44:17,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200257906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:17,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:17,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:44:17,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595611103] [2024-11-16 09:44:17,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:17,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:17,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:17,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:17,109 INFO L87 Difference]: Start difference. First operand has 921 states, 918 states have (on average 1.89760348583878) internal successors, (1742), 920 states have internal predecessors, (1742), 0 states have call successors, (0), 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 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:20,068 INFO L93 Difference]: Finished difference Result 2550 states and 4897 transitions. [2024-11-16 09:44:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2024-11-16 09:44:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:20,098 INFO L225 Difference]: With dead ends: 2550 [2024-11-16 09:44:20,099 INFO L226 Difference]: Without dead ends: 1605 [2024-11-16 09:44:20,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:20,110 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 988 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:20,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 656 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 09:44:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-11-16 09:44:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2024-11-16 09:44:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1603 states have (on average 1.643792888334373) internal successors, (2635), 1604 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2635 transitions. [2024-11-16 09:44:20,206 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2635 transitions. Word has length 18 [2024-11-16 09:44:20,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:20,206 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2635 transitions. [2024-11-16 09:44:20,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2635 transitions. [2024-11-16 09:44:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:44:20,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:20,208 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:20,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:44:20,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:20,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash 284090127, now seen corresponding path program 1 times [2024-11-16 09:44:20,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:20,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158008241] [2024-11-16 09:44:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:20,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158008241] [2024-11-16 09:44:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158008241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:44:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649952612] [2024-11-16 09:44:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:20,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:44:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:44:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:20,463 INFO L87 Difference]: Start difference. First operand 1605 states and 2635 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) [2024-11-16 09:44:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:20,571 INFO L93 Difference]: Finished difference Result 1660 states and 2719 transitions. [2024-11-16 09:44:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:44:20,572 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 [2024-11-16 09:44:20,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:20,580 INFO L225 Difference]: With dead ends: 1660 [2024-11-16 09:44:20,580 INFO L226 Difference]: Without dead ends: 1605 [2024-11-16 09:44:20,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:20,586 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 0 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:20,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6375 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-11-16 09:44:20,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2024-11-16 09:44:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1603 states have (on average 1.6188396756082346) internal successors, (2595), 1604 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2595 transitions. [2024-11-16 09:44:20,652 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2595 transitions. Word has length 28 [2024-11-16 09:44:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:20,653 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2595 transitions. [2024-11-16 09:44:20,653 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) [2024-11-16 09:44:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2595 transitions. [2024-11-16 09:44:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:44:20,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:20,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:20,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:44:20,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:20,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1890415008, now seen corresponding path program 1 times [2024-11-16 09:44:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:20,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976457051] [2024-11-16 09:44:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:20,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:20,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976457051] [2024-11-16 09:44:20,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976457051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:20,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:20,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:20,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064767117] [2024-11-16 09:44:20,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:20,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:20,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:20,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:20,850 INFO L87 Difference]: Start difference. First operand 1605 states and 2595 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:21,123 INFO L93 Difference]: Finished difference Result 2217 states and 3555 transitions. [2024-11-16 09:44:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:44:21,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-16 09:44:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:21,132 INFO L225 Difference]: With dead ends: 2217 [2024-11-16 09:44:21,132 INFO L226 Difference]: Without dead ends: 2166 [2024-11-16 09:44:21,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:44:21,134 INFO L432 NwaCegarLoop]: 1563 mSDtfsCounter, 9749 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9749 SdHoareTripleChecker+Valid, 3661 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:21,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9749 Valid, 3661 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-16 09:44:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1653. [2024-11-16 09:44:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1651 states have (on average 1.6178073894609328) internal successors, (2671), 1652 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2671 transitions. [2024-11-16 09:44:21,170 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2671 transitions. Word has length 67 [2024-11-16 09:44:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:21,171 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2671 transitions. [2024-11-16 09:44:21,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2671 transitions. [2024-11-16 09:44:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:44:21,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:21,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:21,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:44:21,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:21,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2087950270, now seen corresponding path program 1 times [2024-11-16 09:44:21,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:21,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100559096] [2024-11-16 09:44:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:21,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:21,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:21,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100559096] [2024-11-16 09:44:21,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100559096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:21,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:21,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:21,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003328079] [2024-11-16 09:44:21,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:21,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:21,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:21,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:21,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:21,517 INFO L87 Difference]: Start difference. First operand 1653 states and 2671 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:21,821 INFO L93 Difference]: Finished difference Result 1755 states and 2829 transitions. [2024-11-16 09:44:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:44:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:21,829 INFO L225 Difference]: With dead ends: 1755 [2024-11-16 09:44:21,829 INFO L226 Difference]: Without dead ends: 1656 [2024-11-16 09:44:21,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:44:21,830 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 3032 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:21,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 1942 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-16 09:44:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1653. [2024-11-16 09:44:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1651 states have (on average 1.6172016959418534) internal successors, (2670), 1652 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2670 transitions. [2024-11-16 09:44:21,852 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2670 transitions. Word has length 69 [2024-11-16 09:44:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:21,852 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2670 transitions. [2024-11-16 09:44:21,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2670 transitions. [2024-11-16 09:44:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:44:21,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:21,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:21,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:44:21,854 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:21,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1421870275, now seen corresponding path program 1 times [2024-11-16 09:44:21,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:21,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055609625] [2024-11-16 09:44:21,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:21,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:21,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:21,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055609625] [2024-11-16 09:44:21,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055609625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:21,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:21,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:21,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126198758] [2024-11-16 09:44:21,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:21,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:21,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:21,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:21,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:21,916 INFO L87 Difference]: Start difference. First operand 1653 states and 2670 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:21,948 INFO L93 Difference]: Finished difference Result 1839 states and 2960 transitions. [2024-11-16 09:44:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 09:44:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:21,953 INFO L225 Difference]: With dead ends: 1839 [2024-11-16 09:44:21,953 INFO L226 Difference]: Without dead ends: 1740 [2024-11-16 09:44:21,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:21,955 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 1494 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:21,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1648 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-11-16 09:44:21,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1737. [2024-11-16 09:44:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1735 states have (on average 1.6138328530259367) internal successors, (2800), 1736 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2800 transitions. [2024-11-16 09:44:21,977 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2800 transitions. Word has length 70 [2024-11-16 09:44:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:21,977 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2800 transitions. [2024-11-16 09:44:21,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:21,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2800 transitions. [2024-11-16 09:44:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:21,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:21,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:21,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:44:21,979 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:21,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1953207484, now seen corresponding path program 1 times [2024-11-16 09:44:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:21,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461722009] [2024-11-16 09:44:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:22,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:22,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461722009] [2024-11-16 09:44:22,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461722009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:22,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:22,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:22,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080934317] [2024-11-16 09:44:22,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:22,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:22,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:22,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,037 INFO L87 Difference]: Start difference. First operand 1737 states and 2800 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:22,067 INFO L93 Difference]: Finished difference Result 1930 states and 3100 transitions. [2024-11-16 09:44:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:22,073 INFO L225 Difference]: With dead ends: 1930 [2024-11-16 09:44:22,073 INFO L226 Difference]: Without dead ends: 1831 [2024-11-16 09:44:22,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,074 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 1510 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:22,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1712 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-16 09:44:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1828. [2024-11-16 09:44:22,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1826 states have (on average 1.6100766703176341) internal successors, (2940), 1827 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2940 transitions. [2024-11-16 09:44:22,103 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2940 transitions. Word has length 71 [2024-11-16 09:44:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,103 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2940 transitions. [2024-11-16 09:44:22,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2940 transitions. [2024-11-16 09:44:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:22,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:22,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:44:22,104 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1569219012, now seen corresponding path program 1 times [2024-11-16 09:44:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772242982] [2024-11-16 09:44:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772242982] [2024-11-16 09:44:22,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772242982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:22,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:22,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412129015] [2024-11-16 09:44:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:22,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,166 INFO L87 Difference]: Start difference. First operand 1828 states and 2940 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:22,201 INFO L93 Difference]: Finished difference Result 2346 states and 3742 transitions. [2024-11-16 09:44:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:22,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:22,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:22,207 INFO L225 Difference]: With dead ends: 2346 [2024-11-16 09:44:22,208 INFO L226 Difference]: Without dead ends: 2075 [2024-11-16 09:44:22,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,211 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 1506 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:22,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1712 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-16 09:44:22,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2072. [2024-11-16 09:44:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 2070 states have (on average 1.6) internal successors, (3312), 2071 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 3312 transitions. [2024-11-16 09:44:22,244 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 3312 transitions. Word has length 71 [2024-11-16 09:44:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,244 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 3312 transitions. [2024-11-16 09:44:22,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 3312 transitions. [2024-11-16 09:44:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:22,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:22,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:44:22,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,246 INFO L85 PathProgramCache]: Analyzing trace with hash 567809284, now seen corresponding path program 1 times [2024-11-16 09:44:22,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688244943] [2024-11-16 09:44:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:22,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688244943] [2024-11-16 09:44:22,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688244943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:22,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:22,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:22,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594935400] [2024-11-16 09:44:22,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:22,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:22,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:22,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,301 INFO L87 Difference]: Start difference. First operand 2072 states and 3312 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:22,342 INFO L93 Difference]: Finished difference Result 3054 states and 4816 transitions. [2024-11-16 09:44:22,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:22,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:22,349 INFO L225 Difference]: With dead ends: 3054 [2024-11-16 09:44:22,349 INFO L226 Difference]: Without dead ends: 2539 [2024-11-16 09:44:22,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,351 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 1504 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:22,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1714 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2024-11-16 09:44:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2536. [2024-11-16 09:44:22,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2534 states have (on average 1.5816890292028414) internal successors, (4008), 2535 states have internal predecessors, (4008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4008 transitions. [2024-11-16 09:44:22,398 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4008 transitions. Word has length 71 [2024-11-16 09:44:22,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,398 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 4008 transitions. [2024-11-16 09:44:22,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4008 transitions. [2024-11-16 09:44:22,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:22,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,399 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:22,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:44:22,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,400 INFO L85 PathProgramCache]: Analyzing trace with hash 553359428, now seen corresponding path program 1 times [2024-11-16 09:44:22,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627222891] [2024-11-16 09:44:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:22,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:22,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627222891] [2024-11-16 09:44:22,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627222891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:22,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:22,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:22,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50545767] [2024-11-16 09:44:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:22,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:22,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:22,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,450 INFO L87 Difference]: Start difference. First operand 2536 states and 4008 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:22,503 INFO L93 Difference]: Finished difference Result 4398 states and 6820 transitions. [2024-11-16 09:44:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:22,513 INFO L225 Difference]: With dead ends: 4398 [2024-11-16 09:44:22,514 INFO L226 Difference]: Without dead ends: 3419 [2024-11-16 09:44:22,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,516 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1502 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:22,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1716 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-11-16 09:44:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3416. [2024-11-16 09:44:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3414 states have (on average 1.5536028119507908) internal successors, (5304), 3415 states have internal predecessors, (5304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 5304 transitions. [2024-11-16 09:44:22,591 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 5304 transitions. Word has length 71 [2024-11-16 09:44:22,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,591 INFO L471 AbstractCegarLoop]: Abstraction has 3416 states and 5304 transitions. [2024-11-16 09:44:22,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 5304 transitions. [2024-11-16 09:44:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:22,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:22,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:44:22,593 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1650005116, now seen corresponding path program 1 times [2024-11-16 09:44:22,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553209716] [2024-11-16 09:44:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:22,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:22,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553209716] [2024-11-16 09:44:22,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553209716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:22,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:22,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:22,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012108672] [2024-11-16 09:44:22,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:22,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:22,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:22,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:22,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,654 INFO L87 Difference]: Start difference. First operand 3416 states and 5304 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:22,718 INFO L93 Difference]: Finished difference Result 6942 states and 10540 transitions. [2024-11-16 09:44:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:22,731 INFO L225 Difference]: With dead ends: 6942 [2024-11-16 09:44:22,731 INFO L226 Difference]: Without dead ends: 5083 [2024-11-16 09:44:22,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:22,735 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1500 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:22,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:22,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2024-11-16 09:44:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 5080. [2024-11-16 09:44:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 5078 states have (on average 1.517132729421032) internal successors, (7704), 5079 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 7704 transitions. [2024-11-16 09:44:22,829 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 7704 transitions. Word has length 71 [2024-11-16 09:44:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,829 INFO L471 AbstractCegarLoop]: Abstraction has 5080 states and 7704 transitions. [2024-11-16 09:44:22,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 7704 transitions. [2024-11-16 09:44:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:22,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:22,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:44:22,830 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2120685125, now seen corresponding path program 1 times [2024-11-16 09:44:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540950813] [2024-11-16 09:44:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:23,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540950813] [2024-11-16 09:44:23,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540950813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:23,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:23,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:23,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367190769] [2024-11-16 09:44:23,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:23,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:23,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:23,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:23,126 INFO L87 Difference]: Start difference. First operand 5080 states and 7704 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:23,224 INFO L93 Difference]: Finished difference Result 5275 states and 7962 transitions. [2024-11-16 09:44:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:23,233 INFO L225 Difference]: With dead ends: 5275 [2024-11-16 09:44:23,234 INFO L226 Difference]: Without dead ends: 5272 [2024-11-16 09:44:23,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:23,235 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 0 mSDsluCounter, 9353 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10914 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:23,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10914 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-11-16 09:44:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5272. [2024-11-16 09:44:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5270 states have (on average 1.4952561669829223) internal successors, (7880), 5271 states have internal predecessors, (7880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 7880 transitions. [2024-11-16 09:44:23,325 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 7880 transitions. Word has length 71 [2024-11-16 09:44:23,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:23,326 INFO L471 AbstractCegarLoop]: Abstraction has 5272 states and 7880 transitions. [2024-11-16 09:44:23,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 7880 transitions. [2024-11-16 09:44:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:23,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:23,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:23,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:44:23,327 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:23,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1851293316, now seen corresponding path program 1 times [2024-11-16 09:44:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337199355] [2024-11-16 09:44:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:23,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:23,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:23,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:23,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337199355] [2024-11-16 09:44:23,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337199355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:23,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:23,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:23,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261406012] [2024-11-16 09:44:23,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:23,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:23,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:23,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:23,368 INFO L87 Difference]: Start difference. First operand 5272 states and 7880 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:23,451 INFO L93 Difference]: Finished difference Result 12318 states and 17932 transitions. [2024-11-16 09:44:23,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:44:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:23,464 INFO L225 Difference]: With dead ends: 12318 [2024-11-16 09:44:23,464 INFO L226 Difference]: Without dead ends: 8603 [2024-11-16 09:44:23,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:23,469 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 1508 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:23,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8603 states. [2024-11-16 09:44:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8603 to 8600. [2024-11-16 09:44:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8598 states have (on average 1.4505698999767387) internal successors, (12472), 8599 states have internal predecessors, (12472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12472 transitions. [2024-11-16 09:44:23,620 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12472 transitions. Word has length 71 [2024-11-16 09:44:23,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:23,620 INFO L471 AbstractCegarLoop]: Abstraction has 8600 states and 12472 transitions. [2024-11-16 09:44:23,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:23,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12472 transitions. [2024-11-16 09:44:23,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 09:44:23,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:23,622 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:23,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:44:23,622 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:23,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash -375271938, now seen corresponding path program 1 times [2024-11-16 09:44:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:23,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881935256] [2024-11-16 09:44:23,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:23,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:23,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881935256] [2024-11-16 09:44:23,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881935256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:23,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:23,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:23,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826950867] [2024-11-16 09:44:23,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:23,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:23,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:23,681 INFO L87 Difference]: Start difference. First operand 8600 states and 12472 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:26,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:26,430 INFO L93 Difference]: Finished difference Result 11611 states and 17404 transitions. [2024-11-16 09:44:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:26,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-16 09:44:26,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:26,444 INFO L225 Difference]: With dead ends: 11611 [2024-11-16 09:44:26,444 INFO L226 Difference]: Without dead ends: 10104 [2024-11-16 09:44:26,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:26,447 INFO L432 NwaCegarLoop]: 1278 mSDtfsCounter, 753 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:26,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1414 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:44:26,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10104 states. [2024-11-16 09:44:26,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10104 to 10104. [2024-11-16 09:44:26,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10104 states, 10102 states have (on average 1.4482280736487825) internal successors, (14630), 10103 states have internal predecessors, (14630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10104 states to 10104 states and 14630 transitions. [2024-11-16 09:44:26,602 INFO L78 Accepts]: Start accepts. Automaton has 10104 states and 14630 transitions. Word has length 90 [2024-11-16 09:44:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:26,602 INFO L471 AbstractCegarLoop]: Abstraction has 10104 states and 14630 transitions. [2024-11-16 09:44:26,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 10104 states and 14630 transitions. [2024-11-16 09:44:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 09:44:26,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:26,605 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:26,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:44:26,606 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:26,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -703841380, now seen corresponding path program 1 times [2024-11-16 09:44:26,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:26,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263778845] [2024-11-16 09:44:26,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:26,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:26,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263778845] [2024-11-16 09:44:26,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263778845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:26,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:26,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:44:26,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484644302] [2024-11-16 09:44:26,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:26,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:26,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:26,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:26,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:26,669 INFO L87 Difference]: Start difference. First operand 10104 states and 14630 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 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) [2024-11-16 09:44:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:29,650 INFO L93 Difference]: Finished difference Result 16123 states and 23878 transitions. [2024-11-16 09:44:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:29,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 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 93 [2024-11-16 09:44:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:29,669 INFO L225 Difference]: With dead ends: 16123 [2024-11-16 09:44:29,669 INFO L226 Difference]: Without dead ends: 13112 [2024-11-16 09:44:29,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:29,674 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 901 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:29,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 576 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 09:44:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13112 states. [2024-11-16 09:44:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13112 to 13112. [2024-11-16 09:44:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13112 states, 13110 states have (on average 1.3930587337909992) internal successors, (18263), 13111 states have internal predecessors, (18263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13112 states to 13112 states and 18263 transitions. [2024-11-16 09:44:29,931 INFO L78 Accepts]: Start accepts. Automaton has 13112 states and 18263 transitions. Word has length 93 [2024-11-16 09:44:29,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:29,931 INFO L471 AbstractCegarLoop]: Abstraction has 13112 states and 18263 transitions. [2024-11-16 09:44:29,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 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) [2024-11-16 09:44:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13112 states and 18263 transitions. [2024-11-16 09:44:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:29,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:29,935 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:44:29,935 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:29,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:29,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1115173302, now seen corresponding path program 1 times [2024-11-16 09:44:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:29,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167401657] [2024-11-16 09:44:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:29,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:44:30,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:30,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167401657] [2024-11-16 09:44:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167401657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:30,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:30,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:30,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776854421] [2024-11-16 09:44:30,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:30,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:30,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:30,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:30,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:30,119 INFO L87 Difference]: Start difference. First operand 13112 states and 18263 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:30,856 INFO L93 Difference]: Finished difference Result 54829 states and 77157 transitions. [2024-11-16 09:44:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 94 [2024-11-16 09:44:30,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:30,927 INFO L225 Difference]: With dead ends: 54829 [2024-11-16 09:44:30,927 INFO L226 Difference]: Without dead ends: 49834 [2024-11-16 09:44:30,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:30,951 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 8059 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:30,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8059 Valid, 3997 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49834 states. [2024-11-16 09:44:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49834 to 19160. [2024-11-16 09:44:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19160 states, 19158 states have (on average 1.394247833803111) internal successors, (26711), 19159 states have internal predecessors, (26711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19160 states to 19160 states and 26711 transitions. [2024-11-16 09:44:31,504 INFO L78 Accepts]: Start accepts. Automaton has 19160 states and 26711 transitions. Word has length 94 [2024-11-16 09:44:31,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:31,504 INFO L471 AbstractCegarLoop]: Abstraction has 19160 states and 26711 transitions. [2024-11-16 09:44:31,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 19160 states and 26711 transitions. [2024-11-16 09:44:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:31,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:31,508 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:31,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:44:31,508 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:31,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash 342632502, now seen corresponding path program 1 times [2024-11-16 09:44:31,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:31,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509424637] [2024-11-16 09:44:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:31,659 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:44:31,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:31,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509424637] [2024-11-16 09:44:31,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509424637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:31,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:31,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:31,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449713099] [2024-11-16 09:44:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:31,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:31,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:31,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:31,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:31,663 INFO L87 Difference]: Start difference. First operand 19160 states and 26711 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:32,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:32,260 INFO L93 Difference]: Finished difference Result 61869 states and 87045 transitions. [2024-11-16 09:44:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:32,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 94 [2024-11-16 09:44:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:32,326 INFO L225 Difference]: With dead ends: 61869 [2024-11-16 09:44:32,326 INFO L226 Difference]: Without dead ends: 54826 [2024-11-16 09:44:32,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:32,353 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 8113 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8113 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:32,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8113 Valid, 4060 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54826 states. [2024-11-16 09:44:33,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54826 to 28696. [2024-11-16 09:44:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28696 states, 28694 states have (on average 1.3948212169791594) internal successors, (40023), 28695 states have internal predecessors, (40023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28696 states to 28696 states and 40023 transitions. [2024-11-16 09:44:33,062 INFO L78 Accepts]: Start accepts. Automaton has 28696 states and 40023 transitions. Word has length 94 [2024-11-16 09:44:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 28696 states and 40023 transitions. [2024-11-16 09:44:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 28696 states and 40023 transitions. [2024-11-16 09:44:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:33,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:33,066 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:33,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:44:33,067 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:33,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash -658777226, now seen corresponding path program 1 times [2024-11-16 09:44:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:33,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56173648] [2024-11-16 09:44:33,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:44:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:33,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56173648] [2024-11-16 09:44:33,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56173648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:33,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:33,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553841786] [2024-11-16 09:44:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:33,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:33,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:33,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:33,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:33,194 INFO L87 Difference]: Start difference. First operand 28696 states and 40023 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:34,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:34,349 INFO L93 Difference]: Finished difference Result 68909 states and 96901 transitions. [2024-11-16 09:44:34,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:34,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 94 [2024-11-16 09:44:34,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:34,415 INFO L225 Difference]: With dead ends: 68909 [2024-11-16 09:44:34,416 INFO L226 Difference]: Without dead ends: 61866 [2024-11-16 09:44:34,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:34,433 INFO L432 NwaCegarLoop]: 1643 mSDtfsCounter, 8161 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8161 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:34,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8161 Valid, 3983 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61866 states. [2024-11-16 09:44:35,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61866 to 35736. [2024-11-16 09:44:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35736 states, 35734 states have (on average 1.395841495494487) internal successors, (49879), 35735 states have internal predecessors, (49879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35736 states to 35736 states and 49879 transitions. [2024-11-16 09:44:35,377 INFO L78 Accepts]: Start accepts. Automaton has 35736 states and 49879 transitions. Word has length 94 [2024-11-16 09:44:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:35,378 INFO L471 AbstractCegarLoop]: Abstraction has 35736 states and 49879 transitions. [2024-11-16 09:44:35,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 35736 states and 49879 transitions. [2024-11-16 09:44:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:35,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:35,387 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:35,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:44:35,387 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:35,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:35,388 INFO L85 PathProgramCache]: Analyzing trace with hash -673227082, now seen corresponding path program 1 times [2024-11-16 09:44:35,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:35,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096937871] [2024-11-16 09:44:35,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:35,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:35,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:44:35,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:35,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096937871] [2024-11-16 09:44:35,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096937871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:35,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:35,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:35,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820326716] [2024-11-16 09:44:35,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:35,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:35,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:35,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:35,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:35,553 INFO L87 Difference]: Start difference. First operand 35736 states and 49879 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:36,646 INFO L93 Difference]: Finished difference Result 75949 states and 106757 transitions. [2024-11-16 09:44:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:36,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 94 [2024-11-16 09:44:36,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:36,733 INFO L225 Difference]: With dead ends: 75949 [2024-11-16 09:44:36,733 INFO L226 Difference]: Without dead ends: 68906 [2024-11-16 09:44:36,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:36,753 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 8212 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8212 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:36,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8212 Valid, 3963 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68906 states. [2024-11-16 09:44:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68906 to 42776. [2024-11-16 09:44:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42776 states, 42774 states have (on average 1.3965259269649788) internal successors, (59735), 42775 states have internal predecessors, (59735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42776 states to 42776 states and 59735 transitions. [2024-11-16 09:44:38,037 INFO L78 Accepts]: Start accepts. Automaton has 42776 states and 59735 transitions. Word has length 94 [2024-11-16 09:44:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:38,038 INFO L471 AbstractCegarLoop]: Abstraction has 42776 states and 59735 transitions. [2024-11-16 09:44:38,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 42776 states and 59735 transitions. [2024-11-16 09:44:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:38,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:38,043 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:38,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:44:38,044 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:38,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1418375670, now seen corresponding path program 1 times [2024-11-16 09:44:38,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:38,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825253014] [2024-11-16 09:44:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:44:38,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:38,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825253014] [2024-11-16 09:44:38,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825253014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:38,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:38,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:38,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877910002] [2024-11-16 09:44:38,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:38,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:38,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:38,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:38,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:38,389 INFO L87 Difference]: Start difference. First operand 42776 states and 59735 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:39,502 INFO L93 Difference]: Finished difference Result 82989 states and 116613 transitions. [2024-11-16 09:44:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:39,579 INFO L225 Difference]: With dead ends: 82989 [2024-11-16 09:44:39,579 INFO L226 Difference]: Without dead ends: 75946 [2024-11-16 09:44:39,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:39,596 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 8122 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8122 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:39,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 4063 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75946 states. [2024-11-16 09:44:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75946 to 49816. [2024-11-16 09:44:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49816 states, 49814 states have (on average 1.3970169028787087) internal successors, (69591), 49815 states have internal predecessors, (69591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49816 states to 49816 states and 69591 transitions. [2024-11-16 09:44:41,051 INFO L78 Accepts]: Start accepts. Automaton has 49816 states and 69591 transitions. Word has length 94 [2024-11-16 09:44:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:41,051 INFO L471 AbstractCegarLoop]: Abstraction has 49816 states and 69591 transitions. [2024-11-16 09:44:41,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 49816 states and 69591 transitions. [2024-11-16 09:44:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:41,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:41,058 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:41,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:44:41,060 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash 624706806, now seen corresponding path program 1 times [2024-11-16 09:44:41,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:41,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030336651] [2024-11-16 09:44:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:41,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:44:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:41,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030336651] [2024-11-16 09:44:41,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030336651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:41,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:41,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:41,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49479362] [2024-11-16 09:44:41,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:41,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:41,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:41,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:41,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:41,192 INFO L87 Difference]: Start difference. First operand 49816 states and 69591 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,552 INFO L93 Difference]: Finished difference Result 90029 states and 126469 transitions. [2024-11-16 09:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:42,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 94 [2024-11-16 09:44:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,659 INFO L225 Difference]: With dead ends: 90029 [2024-11-16 09:44:42,659 INFO L226 Difference]: Without dead ends: 82986 [2024-11-16 09:44:42,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:42,680 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8060 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8060 SdHoareTripleChecker+Valid, 4222 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8060 Valid, 4222 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82986 states. [2024-11-16 09:44:44,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82986 to 56856. [2024-11-16 09:44:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56856 states, 56854 states have (on average 1.3973862876842438) internal successors, (79447), 56855 states have internal predecessors, (79447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56856 states to 56856 states and 79447 transitions. [2024-11-16 09:44:44,389 INFO L78 Accepts]: Start accepts. Automaton has 56856 states and 79447 transitions. Word has length 94 [2024-11-16 09:44:44,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:44,389 INFO L471 AbstractCegarLoop]: Abstraction has 56856 states and 79447 transitions. [2024-11-16 09:44:44,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 56856 states and 79447 transitions. [2024-11-16 09:44:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:44:44,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:44,395 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:44,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:44:44,396 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:44,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:44,396 INFO L85 PathProgramCache]: Analyzing trace with hash 229079768, now seen corresponding path program 1 times [2024-11-16 09:44:44,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:44,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046516736] [2024-11-16 09:44:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:44,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:44,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046516736] [2024-11-16 09:44:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046516736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:44,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408199589] [2024-11-16 09:44:44,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:44,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:44,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:44,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:44,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:44,661 INFO L87 Difference]: Start difference. First operand 56856 states and 79447 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:45,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:45,591 INFO L93 Difference]: Finished difference Result 107646 states and 150587 transitions. [2024-11-16 09:44:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:45,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-16 09:44:45,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:45,662 INFO L225 Difference]: With dead ends: 107646 [2024-11-16 09:44:45,663 INFO L226 Difference]: Without dead ends: 56859 [2024-11-16 09:44:45,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:45,694 INFO L432 NwaCegarLoop]: 1611 mSDtfsCounter, 52 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:45,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56859 states. [2024-11-16 09:44:47,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56859 to 56856. [2024-11-16 09:44:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56856 states, 56854 states have (on average 1.385285116262708) internal successors, (78759), 56855 states have internal predecessors, (78759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56856 states to 56856 states and 78759 transitions. [2024-11-16 09:44:47,365 INFO L78 Accepts]: Start accepts. Automaton has 56856 states and 78759 transitions. Word has length 96 [2024-11-16 09:44:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:47,365 INFO L471 AbstractCegarLoop]: Abstraction has 56856 states and 78759 transitions. [2024-11-16 09:44:47,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 56856 states and 78759 transitions. [2024-11-16 09:44:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:44:47,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:47,372 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:47,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:44:47,372 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:47,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1337179672, now seen corresponding path program 1 times [2024-11-16 09:44:47,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:47,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828924402] [2024-11-16 09:44:47,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:47,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:47,443 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:47,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:47,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828924402] [2024-11-16 09:44:47,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828924402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:47,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:47,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:47,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150723177] [2024-11-16 09:44:47,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:47,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:47,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:47,444 INFO L87 Difference]: Start difference. First operand 56856 states and 78759 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:47,970 INFO L93 Difference]: Finished difference Result 75605 states and 104947 transitions. [2024-11-16 09:44:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:47,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-16 09:44:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:48,000 INFO L225 Difference]: With dead ends: 75605 [2024-11-16 09:44:48,001 INFO L226 Difference]: Without dead ends: 24818 [2024-11-16 09:44:48,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:48,033 INFO L432 NwaCegarLoop]: 1609 mSDtfsCounter, 48 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:48,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:48,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24818 states. [2024-11-16 09:44:48,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24818 to 24808. [2024-11-16 09:44:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24808 states, 24806 states have (on average 1.3805934048214141) internal successors, (34247), 24807 states have internal predecessors, (34247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24808 states to 24808 states and 34247 transitions. [2024-11-16 09:44:48,476 INFO L78 Accepts]: Start accepts. Automaton has 24808 states and 34247 transitions. Word has length 96 [2024-11-16 09:44:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:48,478 INFO L471 AbstractCegarLoop]: Abstraction has 24808 states and 34247 transitions. [2024-11-16 09:44:48,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 24808 states and 34247 transitions. [2024-11-16 09:44:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:44:48,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:48,481 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:44:48,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:44:48,481 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:48,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash -570866790, now seen corresponding path program 1 times [2024-11-16 09:44:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:48,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963715391] [2024-11-16 09:44:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:48,659 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:48,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:48,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963715391] [2024-11-16 09:44:48,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963715391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:48,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472337081] [2024-11-16 09:44:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:48,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:48,661 INFO L87 Difference]: Start difference. First operand 24808 states and 34247 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:48,840 INFO L93 Difference]: Finished difference Result 34174 states and 47211 transitions. [2024-11-16 09:44:48,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:48,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-16 09:44:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:48,858 INFO L225 Difference]: With dead ends: 34174 [2024-11-16 09:44:48,859 INFO L226 Difference]: Without dead ends: 15451 [2024-11-16 09:44:48,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:48,874 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 46 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:48,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3142 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:48,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15451 states. [2024-11-16 09:44:49,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15451 to 15448. [2024-11-16 09:44:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15448 states, 15446 states have (on average 1.3703871552505502) internal successors, (21167), 15447 states have internal predecessors, (21167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15448 states to 15448 states and 21167 transitions. [2024-11-16 09:44:49,111 INFO L78 Accepts]: Start accepts. Automaton has 15448 states and 21167 transitions. Word has length 98 [2024-11-16 09:44:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:49,112 INFO L471 AbstractCegarLoop]: Abstraction has 15448 states and 21167 transitions. [2024-11-16 09:44:49,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 15448 states and 21167 transitions. [2024-11-16 09:44:49,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:44:49,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:49,114 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:49,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:44:49,114 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:49,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:49,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1632386519, now seen corresponding path program 1 times [2024-11-16 09:44:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943359101] [2024-11-16 09:44:49,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:49,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:49,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:49,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943359101] [2024-11-16 09:44:49,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943359101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:49,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:49,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:49,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660027152] [2024-11-16 09:44:49,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:49,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:44:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:44:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:44:49,221 INFO L87 Difference]: Start difference. First operand 15448 states and 21167 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:52,196 INFO L93 Difference]: Finished difference Result 22219 states and 30297 transitions. [2024-11-16 09:44:52,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:44:52,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-16 09:44:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:52,215 INFO L225 Difference]: With dead ends: 22219 [2024-11-16 09:44:52,216 INFO L226 Difference]: Without dead ends: 16200 [2024-11-16 09:44:52,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:52,224 INFO L432 NwaCegarLoop]: 819 mSDtfsCounter, 1010 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:52,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 1427 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 3152 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:44:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2024-11-16 09:44:52,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 16200. [2024-11-16 09:44:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16200 states, 16198 states have (on average 1.3535621681689098) internal successors, (21925), 16199 states have internal predecessors, (21925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16200 states to 16200 states and 21925 transitions. [2024-11-16 09:44:52,749 INFO L78 Accepts]: Start accepts. Automaton has 16200 states and 21925 transitions. Word has length 100 [2024-11-16 09:44:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:52,749 INFO L471 AbstractCegarLoop]: Abstraction has 16200 states and 21925 transitions. [2024-11-16 09:44:52,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 16200 states and 21925 transitions. [2024-11-16 09:44:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:44:52,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:52,751 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:52,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:44:52,751 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:52,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1416702177, now seen corresponding path program 1 times [2024-11-16 09:44:52,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:52,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663985355] [2024-11-16 09:44:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:52,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:52,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663985355] [2024-11-16 09:44:52,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663985355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:52,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:52,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:52,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717826564] [2024-11-16 09:44:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:52,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:52,810 INFO L87 Difference]: Start difference. First operand 16200 states and 21925 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:52,913 INFO L93 Difference]: Finished difference Result 20886 states and 28349 transitions. [2024-11-16 09:44:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-16 09:44:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:52,927 INFO L225 Difference]: With dead ends: 20886 [2024-11-16 09:44:52,927 INFO L226 Difference]: Without dead ends: 11523 [2024-11-16 09:44:52,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:52,936 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 43 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:52,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3127 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:52,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2024-11-16 09:44:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 11520. [2024-11-16 09:44:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11520 states, 11518 states have (on average 1.3409446084389651) internal successors, (15445), 11519 states have internal predecessors, (15445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11520 states to 11520 states and 15445 transitions. [2024-11-16 09:44:53,088 INFO L78 Accepts]: Start accepts. Automaton has 11520 states and 15445 transitions. Word has length 100 [2024-11-16 09:44:53,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:53,088 INFO L471 AbstractCegarLoop]: Abstraction has 11520 states and 15445 transitions. [2024-11-16 09:44:53,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 11520 states and 15445 transitions. [2024-11-16 09:44:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:44:53,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:53,090 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:53,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:44:53,090 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:53,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1901199544, now seen corresponding path program 1 times [2024-11-16 09:44:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:53,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435272689] [2024-11-16 09:44:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:53,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:53,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435272689] [2024-11-16 09:44:53,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435272689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:53,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:53,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:53,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743184482] [2024-11-16 09:44:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:53,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:53,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:53,147 INFO L87 Difference]: Start difference. First operand 11520 states and 15445 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:53,212 INFO L93 Difference]: Finished difference Result 13866 states and 18629 transitions. [2024-11-16 09:44:53,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:53,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 09:44:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:53,222 INFO L225 Difference]: With dead ends: 13866 [2024-11-16 09:44:53,222 INFO L226 Difference]: Without dead ends: 9183 [2024-11-16 09:44:53,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:53,227 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 40 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:53,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3112 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:53,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9183 states. [2024-11-16 09:44:53,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9183 to 9180. [2024-11-16 09:44:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9180 states, 9178 states have (on average 1.3330791022009152) internal successors, (12235), 9179 states have internal predecessors, (12235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9180 states to 9180 states and 12235 transitions. [2024-11-16 09:44:53,330 INFO L78 Accepts]: Start accepts. Automaton has 9180 states and 12235 transitions. Word has length 102 [2024-11-16 09:44:53,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:53,330 INFO L471 AbstractCegarLoop]: Abstraction has 9180 states and 12235 transitions. [2024-11-16 09:44:53,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9180 states and 12235 transitions. [2024-11-16 09:44:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:44:53,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:53,331 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:53,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 09:44:53,332 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:53,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash 454309583, now seen corresponding path program 1 times [2024-11-16 09:44:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361442861] [2024-11-16 09:44:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:53,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:53,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361442861] [2024-11-16 09:44:53,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361442861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:53,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:53,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:53,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324946098] [2024-11-16 09:44:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:53,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:53,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:53,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:53,388 INFO L87 Difference]: Start difference. First operand 9180 states and 12235 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:53,432 INFO L93 Difference]: Finished difference Result 10356 states and 13814 transitions. [2024-11-16 09:44:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-16 09:44:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:53,441 INFO L225 Difference]: With dead ends: 10356 [2024-11-16 09:44:53,441 INFO L226 Difference]: Without dead ends: 8013 [2024-11-16 09:44:53,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:53,444 INFO L432 NwaCegarLoop]: 1582 mSDtfsCounter, 37 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:53,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3097 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2024-11-16 09:44:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 8010. [2024-11-16 09:44:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8010 states, 8008 states have (on average 1.3292957042957043) internal successors, (10645), 8009 states have internal predecessors, (10645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8010 states to 8010 states and 10645 transitions. [2024-11-16 09:44:53,546 INFO L78 Accepts]: Start accepts. Automaton has 8010 states and 10645 transitions. Word has length 104 [2024-11-16 09:44:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:53,546 INFO L471 AbstractCegarLoop]: Abstraction has 8010 states and 10645 transitions. [2024-11-16 09:44:53,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:53,549 INFO L276 IsEmpty]: Start isEmpty. Operand 8010 states and 10645 transitions. [2024-11-16 09:44:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:44:53,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:53,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:53,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 09:44:53,550 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:53,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1168490634, now seen corresponding path program 1 times [2024-11-16 09:44:53,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:53,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544652227] [2024-11-16 09:44:53,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:53,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544652227] [2024-11-16 09:44:53,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544652227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607552354] [2024-11-16 09:44:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:53,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:53,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:53,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:44:53,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:44:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:53,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:44:54,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:54,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:55,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:55,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607552354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:55,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:55,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:44:55,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348241966] [2024-11-16 09:44:55,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:55,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:44:55,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:55,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:44:55,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:44:55,491 INFO L87 Difference]: Start difference. First operand 8010 states and 10645 transitions. Second operand has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:56,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:56,928 INFO L93 Difference]: Finished difference Result 13011 states and 17319 transitions. [2024-11-16 09:44:56,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:44:56,928 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 states have internal predecessors, (300), 0 states have call successors, (0), 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 106 [2024-11-16 09:44:56,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:56,940 INFO L225 Difference]: With dead ends: 13011 [2024-11-16 09:44:56,940 INFO L226 Difference]: Without dead ends: 11838 [2024-11-16 09:44:56,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=611, Invalid=2469, Unknown=0, NotChecked=0, Total=3080 [2024-11-16 09:44:56,943 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 18142 mSDsluCounter, 6735 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18142 SdHoareTripleChecker+Valid, 8252 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:56,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18142 Valid, 8252 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:44:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11838 states. [2024-11-16 09:44:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11838 to 11760. [2024-11-16 09:44:57,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11760 states, 11758 states have (on average 1.318676645688042) internal successors, (15505), 11759 states have internal predecessors, (15505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11760 states to 11760 states and 15505 transitions. [2024-11-16 09:44:57,104 INFO L78 Accepts]: Start accepts. Automaton has 11760 states and 15505 transitions. Word has length 106 [2024-11-16 09:44:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:57,104 INFO L471 AbstractCegarLoop]: Abstraction has 11760 states and 15505 transitions. [2024-11-16 09:44:57,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 11760 states and 15505 transitions. [2024-11-16 09:44:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:44:57,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:57,105 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:57,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:44:57,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-16 09:44:57,306 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:57,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:57,307 INFO L85 PathProgramCache]: Analyzing trace with hash 771586742, now seen corresponding path program 1 times [2024-11-16 09:44:57,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:57,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687504510] [2024-11-16 09:44:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:57,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:58,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687504510] [2024-11-16 09:44:58,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687504510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:58,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566430004] [2024-11-16 09:44:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:58,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:44:58,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:44:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:58,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 09:44:58,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:58,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:59,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566430004] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:59,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:59,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-16 09:44:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382938481] [2024-11-16 09:44:59,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:59,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 09:44:59,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:59,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 09:44:59,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:44:59,605 INFO L87 Difference]: Start difference. First operand 11760 states and 15505 transitions. Second operand has 29 states, 29 states have (on average 9.517241379310345) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:02,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:02,798 INFO L93 Difference]: Finished difference Result 35781 states and 47139 transitions. [2024-11-16 09:45:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-16 09:45:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.517241379310345) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 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 106 [2024-11-16 09:45:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:02,830 INFO L225 Difference]: With dead ends: 35781 [2024-11-16 09:45:02,830 INFO L226 Difference]: Without dead ends: 30858 [2024-11-16 09:45:02,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1012, Invalid=4244, Unknown=0, NotChecked=0, Total=5256 [2024-11-16 09:45:02,845 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 23668 mSDsluCounter, 8405 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23668 SdHoareTripleChecker+Valid, 9948 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:02,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23668 Valid, 9948 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:45:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30858 states. [2024-11-16 09:45:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30858 to 30360. [2024-11-16 09:45:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30360 states, 30358 states have (on average 1.2993280189735819) internal successors, (39445), 30359 states have internal predecessors, (39445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30360 states to 30360 states and 39445 transitions. [2024-11-16 09:45:03,447 INFO L78 Accepts]: Start accepts. Automaton has 30360 states and 39445 transitions. Word has length 106 [2024-11-16 09:45:03,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:03,448 INFO L471 AbstractCegarLoop]: Abstraction has 30360 states and 39445 transitions. [2024-11-16 09:45:03,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.517241379310345) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:03,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30360 states and 39445 transitions. [2024-11-16 09:45:03,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:45:03,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:03,452 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:03,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:45:03,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 09:45:03,653 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:03,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:03,653 INFO L85 PathProgramCache]: Analyzing trace with hash 241553585, now seen corresponding path program 1 times [2024-11-16 09:45:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:03,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245110213] [2024-11-16 09:45:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:03,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:03,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245110213] [2024-11-16 09:45:03,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245110213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:03,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307991093] [2024-11-16 09:45:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:03,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:03,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:45:03,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:45:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:04,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:45:04,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:04,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307991093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:05,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:05,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-16 09:45:05,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870647465] [2024-11-16 09:45:05,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:05,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-16 09:45:05,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:05,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-16 09:45:05,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-16 09:45:05,403 INFO L87 Difference]: Start difference. First operand 30360 states and 39445 transitions. Second operand has 26 states, 26 states have (on average 11.384615384615385) internal successors, (296), 25 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:08,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:08,014 INFO L93 Difference]: Finished difference Result 80301 states and 104139 transitions. [2024-11-16 09:45:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:45:08,015 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.384615384615385) internal successors, (296), 25 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-16 09:45:08,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:08,080 INFO L225 Difference]: With dead ends: 80301 [2024-11-16 09:45:08,080 INFO L226 Difference]: Without dead ends: 56778 [2024-11-16 09:45:08,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=677, Invalid=2515, Unknown=0, NotChecked=0, Total=3192 [2024-11-16 09:45:08,109 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 18651 mSDsluCounter, 7265 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18651 SdHoareTripleChecker+Valid, 8834 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:08,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18651 Valid, 8834 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:45:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56778 states.