./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.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.6.1.ufo.BOUNDED-12.pals+Problem12_label04.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 4ae09636d6d49c5a158b8afd2276e8412a0fd924126d4adf85602ed9f0284ed9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:43:12,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:43:12,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:43:12,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:43:12,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:43:12,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:43:12,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:43:12,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:43:12,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:43:12,158 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:43:12,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:43:12,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:43:12,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:43:12,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:43:12,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:43:12,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:43:12,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:43:12,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:43:12,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:43:12,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:43:12,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:43:12,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:43:12,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:43:12,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:43:12,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:43:12,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:43:12,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:43:12,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:43:12,168 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:43:12,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:43:12,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:43:12,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:43:12,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:43:12,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:43:12,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:43:12,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:43:12,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ae09636d6d49c5a158b8afd2276e8412a0fd924126d4adf85602ed9f0284ed9 [2024-11-16 09:43:12,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:43:12,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:43:12,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:43:12,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:43:12,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:43:12,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c [2024-11-16 09:43:13,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:43:14,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:43:14,159 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c [2024-11-16 09:43:14,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d372f073/807ab5aed137496cbbf7bbfacfaede06/FLAGca2d80c74 [2024-11-16 09:43:14,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d372f073/807ab5aed137496cbbf7bbfacfaede06 [2024-11-16 09:43:14,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:43:14,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:43:14,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:43:14,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:43:14,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:43:14,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:43:14" (1/1) ... [2024-11-16 09:43:14,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87f6ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:14, skipping insertion in model container [2024-11-16 09:43:14,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:43:14" (1/1) ... [2024-11-16 09:43:14,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:43:14,671 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.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[15519,15532] [2024-11-16 09:43:14,735 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.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[22580,22593] [2024-11-16 09:43:15,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:43:15,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:43:15,321 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.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[15519,15532] [2024-11-16 09:43:15,327 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.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c[22580,22593] [2024-11-16 09:43:15,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:43:15,720 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:43:15,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15 WrapperNode [2024-11-16 09:43:15,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:43:15,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:43:15,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:43:15,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:43:15,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:15,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,035 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5158 [2024-11-16 09:43:16,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:43:16,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:43:16,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:43:16,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:43:16,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,310 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 09:43:16,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,491 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:43:16,573 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:43:16,573 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:43:16,573 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:43:16,574 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (1/1) ... [2024-11-16 09:43:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:43:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:16,600 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 09:43:16,602 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 09:43:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:43:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:43:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:43:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:43:16,740 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:43:16,742 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:43:19,996 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3685: havoc calculate_output2_#t~ret43#1; [2024-11-16 09:43:19,997 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5175: havoc calculate_output3_#t~ret44#1; [2024-11-16 09:43:19,997 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2206: havoc calculate_output_#t~ret42#1; [2024-11-16 09:43:20,134 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:43:20,134 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:43:20,172 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:43:20,173 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:43:20,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:43:20 BoogieIcfgContainer [2024-11-16 09:43:20,173 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:43:20,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:43:20,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:43:20,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:43:20,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:43:14" (1/3) ... [2024-11-16 09:43:20,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e5368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:43:20, skipping insertion in model container [2024-11-16 09:43:20,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:15" (2/3) ... [2024-11-16 09:43:20,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e5368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:43:20, skipping insertion in model container [2024-11-16 09:43:20,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:43:20" (3/3) ... [2024-11-16 09:43:20,179 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals+Problem12_label04.c [2024-11-16 09:43:20,190 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:43:20,191 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:43:20,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:43:20,279 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;@707dc189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:43:20,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:43:20,286 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 09:43:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:43:20,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:20,292 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 09:43:20,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:20,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1972820880, now seen corresponding path program 1 times [2024-11-16 09:43:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716741289] [2024-11-16 09:43:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:20,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:20,498 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 09:43:20,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:20,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716741289] [2024-11-16 09:43:20,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716741289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:20,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:20,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:43:20,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173698145] [2024-11-16 09:43:20,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:20,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:43:20,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:20,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:43:20,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:43:20,521 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 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 09:43:20,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:20,589 INFO L93 Difference]: Finished difference Result 1794 states and 3394 transitions. [2024-11-16 09:43:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:43:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 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 09:43:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:20,609 INFO L225 Difference]: With dead ends: 1794 [2024-11-16 09:43:20,609 INFO L226 Difference]: Without dead ends: 853 [2024-11-16 09:43:20,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:43:20,616 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:20,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:43:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-16 09:43:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2024-11-16 09:43:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 851 states have (on average 1.8883666274970623) internal successors, (1607), 852 states have internal predecessors, (1607), 0 states have call successors, (0), 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 09:43:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1607 transitions. [2024-11-16 09:43:20,678 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1607 transitions. Word has length 28 [2024-11-16 09:43:20,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:20,678 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1607 transitions. [2024-11-16 09:43:20,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 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 09:43:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1607 transitions. [2024-11-16 09:43:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:43:20,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:20,680 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 09:43:20,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:43:20,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:20,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 284090127, now seen corresponding path program 1 times [2024-11-16 09:43:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972995165] [2024-11-16 09:43:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:20,921 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 09:43:20,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:20,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972995165] [2024-11-16 09:43:20,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972995165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:20,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:20,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:43:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310061563] [2024-11-16 09:43:20,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:20,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:43:20,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:20,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:43:20,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:43:20,924 INFO L87 Difference]: Start difference. First operand 853 states and 1607 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 09:43:21,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:21,030 INFO L93 Difference]: Finished difference Result 908 states and 1691 transitions. [2024-11-16 09:43:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:43:21,031 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 09:43:21,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:21,035 INFO L225 Difference]: With dead ends: 908 [2024-11-16 09:43:21,036 INFO L226 Difference]: Without dead ends: 853 [2024-11-16 09:43:21,036 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 09:43:21,038 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 0 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:21,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6375 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-16 09:43:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2024-11-16 09:43:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 851 states have (on average 1.8413631022326675) internal successors, (1567), 852 states have internal predecessors, (1567), 0 states have call successors, (0), 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 09:43:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1567 transitions. [2024-11-16 09:43:21,065 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1567 transitions. Word has length 28 [2024-11-16 09:43:21,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:21,065 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1567 transitions. [2024-11-16 09:43:21,065 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 09:43:21,066 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1567 transitions. [2024-11-16 09:43:21,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 09:43:21,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:21,067 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] [2024-11-16 09:43:21,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:43:21,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:21,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1835537155, now seen corresponding path program 1 times [2024-11-16 09:43:21,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524428865] [2024-11-16 09:43:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:21,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:21,171 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 09:43:21,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:21,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524428865] [2024-11-16 09:43:21,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524428865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:21,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:21,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:43:21,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734227108] [2024-11-16 09:43:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:21,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:21,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:21,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:21,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:21,175 INFO L87 Difference]: Start difference. First operand 853 states and 1567 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 09:43:24,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:24,031 INFO L93 Difference]: Finished difference Result 2360 states and 4443 transitions. [2024-11-16 09:43:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:24,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 09:43:24,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:24,040 INFO L225 Difference]: With dead ends: 2360 [2024-11-16 09:43:24,040 INFO L226 Difference]: Without dead ends: 1605 [2024-11-16 09:43:24,042 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 09:43:24,043 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 866 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:24,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 605 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 09:43:24,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-11-16 09:43:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2024-11-16 09:43:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1603 states have (on average 1.5888958203368684) internal successors, (2547), 1604 states have internal predecessors, (2547), 0 states have call successors, (0), 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 09:43:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2547 transitions. [2024-11-16 09:43:24,128 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2547 transitions. Word has length 63 [2024-11-16 09:43:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:24,128 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 2547 transitions. [2024-11-16 09:43:24,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 09:43:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2547 transitions. [2024-11-16 09:43:24,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:43:24,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:24,133 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 09:43:24,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:43:24,134 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:24,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1890415008, now seen corresponding path program 1 times [2024-11-16 09:43:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:24,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744188785] [2024-11-16 09:43:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:24,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:24,392 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 09:43:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:24,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744188785] [2024-11-16 09:43:24,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744188785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:24,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926256518] [2024-11-16 09:43:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:24,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:24,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:24,396 INFO L87 Difference]: Start difference. First operand 1605 states and 2547 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 09:43:24,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:24,720 INFO L93 Difference]: Finished difference Result 2217 states and 3507 transitions. [2024-11-16 09:43:24,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:43:24,720 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 09:43:24,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:24,727 INFO L225 Difference]: With dead ends: 2217 [2024-11-16 09:43:24,727 INFO L226 Difference]: Without dead ends: 2166 [2024-11-16 09:43:24,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:43:24,729 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 09:43:24,729 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 09:43:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-16 09:43:24,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1653. [2024-11-16 09:43:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1651 states have (on average 1.588734100545124) internal successors, (2623), 1652 states have internal predecessors, (2623), 0 states have call successors, (0), 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 09:43:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2623 transitions. [2024-11-16 09:43:24,762 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2623 transitions. Word has length 67 [2024-11-16 09:43:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:24,762 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2623 transitions. [2024-11-16 09:43:24,762 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 09:43:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2623 transitions. [2024-11-16 09:43:24,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:43:24,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:24,764 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 09:43:24,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:43:24,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:24,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2087950270, now seen corresponding path program 1 times [2024-11-16 09:43:24,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:24,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230732983] [2024-11-16 09:43:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:24,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:25,079 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 09:43:25,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:25,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230732983] [2024-11-16 09:43:25,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230732983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:25,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:25,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:25,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500415101] [2024-11-16 09:43:25,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:25,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:25,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:25,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:25,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:25,082 INFO L87 Difference]: Start difference. First operand 1653 states and 2623 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 09:43:25,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,300 INFO L93 Difference]: Finished difference Result 1755 states and 2781 transitions. [2024-11-16 09:43:25,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:25,301 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 09:43:25,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,307 INFO L225 Difference]: With dead ends: 1755 [2024-11-16 09:43:25,307 INFO L226 Difference]: Without dead ends: 1656 [2024-11-16 09:43:25,309 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 09:43:25,310 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 3032 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:25,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 1948 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-16 09:43:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1653. [2024-11-16 09:43:25,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1651 states have (on average 1.5881284070260449) internal successors, (2622), 1652 states have internal predecessors, (2622), 0 states have call successors, (0), 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 09:43:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2622 transitions. [2024-11-16 09:43:25,339 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2622 transitions. Word has length 69 [2024-11-16 09:43:25,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:25,341 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2622 transitions. [2024-11-16 09:43:25,341 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 09:43:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2622 transitions. [2024-11-16 09:43:25,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:43:25,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:25,342 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 09:43:25,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:43:25,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:25,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:25,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1421870275, now seen corresponding path program 1 times [2024-11-16 09:43:25,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145383846] [2024-11-16 09:43:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:25,449 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 09:43:25,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:25,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145383846] [2024-11-16 09:43:25,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145383846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:25,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:25,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:25,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908395924] [2024-11-16 09:43:25,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:25,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:25,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:25,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:25,455 INFO L87 Difference]: Start difference. First operand 1653 states and 2622 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 09:43:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,489 INFO L93 Difference]: Finished difference Result 1839 states and 2912 transitions. [2024-11-16 09:43:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:25,490 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 09:43:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,496 INFO L225 Difference]: With dead ends: 1839 [2024-11-16 09:43:25,496 INFO L226 Difference]: Without dead ends: 1740 [2024-11-16 09:43:25,497 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 09:43:25,499 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 09:43:25,500 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 09:43:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-11-16 09:43:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1737. [2024-11-16 09:43:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1735 states have (on average 1.5861671469740635) internal successors, (2752), 1736 states have internal predecessors, (2752), 0 states have call successors, (0), 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 09:43:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2752 transitions. [2024-11-16 09:43:25,531 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2752 transitions. Word has length 70 [2024-11-16 09:43:25,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:25,532 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2752 transitions. [2024-11-16 09:43:25,532 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 09:43:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2752 transitions. [2024-11-16 09:43:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:25,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:25,533 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 09:43:25,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:43:25,534 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1953207484, now seen corresponding path program 1 times [2024-11-16 09:43:25,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:25,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633923394] [2024-11-16 09:43:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:25,614 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 09:43:25,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:25,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633923394] [2024-11-16 09:43:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633923394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:25,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730577454] [2024-11-16 09:43:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:25,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:25,617 INFO L87 Difference]: Start difference. First operand 1737 states and 2752 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 09:43:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,653 INFO L93 Difference]: Finished difference Result 1930 states and 3052 transitions. [2024-11-16 09:43:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:25,653 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 09:43:25,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,659 INFO L225 Difference]: With dead ends: 1930 [2024-11-16 09:43:25,660 INFO L226 Difference]: Without dead ends: 1831 [2024-11-16 09:43:25,662 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 09:43:25,662 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 09:43:25,662 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 09:43:25,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-16 09:43:25,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1828. [2024-11-16 09:43:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1826 states have (on average 1.583789704271632) internal successors, (2892), 1827 states have internal predecessors, (2892), 0 states have call successors, (0), 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 09:43:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2892 transitions. [2024-11-16 09:43:25,699 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2892 transitions. Word has length 71 [2024-11-16 09:43:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:25,700 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2892 transitions. [2024-11-16 09:43:25,700 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 09:43:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2892 transitions. [2024-11-16 09:43:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:25,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:25,701 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 09:43:25,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:43:25,702 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:25,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1569219012, now seen corresponding path program 1 times [2024-11-16 09:43:25,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:25,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586941809] [2024-11-16 09:43:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:25,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:25,760 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 09:43:25,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:25,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586941809] [2024-11-16 09:43:25,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586941809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:25,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:25,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:25,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372197226] [2024-11-16 09:43:25,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:25,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:25,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:25,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:25,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:25,762 INFO L87 Difference]: Start difference. First operand 1828 states and 2892 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 09:43:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,797 INFO L93 Difference]: Finished difference Result 2346 states and 3694 transitions. [2024-11-16 09:43:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:25,798 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 09:43:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,804 INFO L225 Difference]: With dead ends: 2346 [2024-11-16 09:43:25,804 INFO L226 Difference]: Without dead ends: 2075 [2024-11-16 09:43:25,806 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 09:43:25,807 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 09:43:25,807 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 09:43:25,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-16 09:43:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2072. [2024-11-16 09:43:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 2070 states have (on average 1.5768115942028986) internal successors, (3264), 2071 states have internal predecessors, (3264), 0 states have call successors, (0), 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 09:43:25,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 3264 transitions. [2024-11-16 09:43:25,838 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 3264 transitions. Word has length 71 [2024-11-16 09:43:25,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:25,838 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 3264 transitions. [2024-11-16 09:43:25,838 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 09:43:25,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 3264 transitions. [2024-11-16 09:43:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:25,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:25,840 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 09:43:25,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:43:25,841 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:25,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:25,841 INFO L85 PathProgramCache]: Analyzing trace with hash 567809284, now seen corresponding path program 1 times [2024-11-16 09:43:25,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:25,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987350509] [2024-11-16 09:43:25,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:25,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:25,885 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 09:43:25,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:25,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987350509] [2024-11-16 09:43:25,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987350509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:25,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:25,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:25,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286606656] [2024-11-16 09:43:25,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:25,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:25,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:25,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:25,887 INFO L87 Difference]: Start difference. First operand 2072 states and 3264 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 09:43:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:25,919 INFO L93 Difference]: Finished difference Result 3054 states and 4768 transitions. [2024-11-16 09:43:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:25,920 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 09:43:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:25,929 INFO L225 Difference]: With dead ends: 3054 [2024-11-16 09:43:25,929 INFO L226 Difference]: Without dead ends: 2539 [2024-11-16 09:43:25,931 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 09:43:25,931 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 09:43:25,931 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 09:43:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2024-11-16 09:43:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2536. [2024-11-16 09:43:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2534 states have (on average 1.5627466456195738) internal successors, (3960), 2535 states have internal predecessors, (3960), 0 states have call successors, (0), 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 09:43:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3960 transitions. [2024-11-16 09:43:26,027 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3960 transitions. Word has length 71 [2024-11-16 09:43:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:26,028 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 3960 transitions. [2024-11-16 09:43:26,028 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 09:43:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3960 transitions. [2024-11-16 09:43:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:26,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:26,030 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 09:43:26,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:43:26,030 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:26,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash 553359428, now seen corresponding path program 1 times [2024-11-16 09:43:26,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:26,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002125271] [2024-11-16 09:43:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,080 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 09:43:26,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:26,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002125271] [2024-11-16 09:43:26,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002125271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:26,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:26,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:26,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724815672] [2024-11-16 09:43:26,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:26,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:26,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:26,082 INFO L87 Difference]: Start difference. First operand 2536 states and 3960 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 09:43:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:26,125 INFO L93 Difference]: Finished difference Result 4398 states and 6772 transitions. [2024-11-16 09:43:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:26,125 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 09:43:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:26,134 INFO L225 Difference]: With dead ends: 4398 [2024-11-16 09:43:26,134 INFO L226 Difference]: Without dead ends: 3419 [2024-11-16 09:43:26,136 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 09:43:26,136 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 09:43:26,137 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 09:43:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2024-11-16 09:43:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3416. [2024-11-16 09:43:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3414 states have (on average 1.539543057996485) internal successors, (5256), 3415 states have internal predecessors, (5256), 0 states have call successors, (0), 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 09:43:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 5256 transitions. [2024-11-16 09:43:26,196 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 5256 transitions. Word has length 71 [2024-11-16 09:43:26,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:26,196 INFO L471 AbstractCegarLoop]: Abstraction has 3416 states and 5256 transitions. [2024-11-16 09:43:26,196 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 09:43:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 5256 transitions. [2024-11-16 09:43:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:26,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:26,197 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 09:43:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:43:26,198 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:26,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1650005116, now seen corresponding path program 1 times [2024-11-16 09:43:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:26,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484526182] [2024-11-16 09:43:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,244 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 09:43:26,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484526182] [2024-11-16 09:43:26,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484526182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:26,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:26,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349437678] [2024-11-16 09:43:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:26,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:26,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:26,246 INFO L87 Difference]: Start difference. First operand 3416 states and 5256 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 09:43:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:26,300 INFO L93 Difference]: Finished difference Result 6942 states and 10492 transitions. [2024-11-16 09:43:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:26,301 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 09:43:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:26,322 INFO L225 Difference]: With dead ends: 6942 [2024-11-16 09:43:26,323 INFO L226 Difference]: Without dead ends: 5083 [2024-11-16 09:43:26,326 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 09:43:26,330 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 09:43:26,330 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 09:43:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2024-11-16 09:43:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 5080. [2024-11-16 09:43:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 5078 states have (on average 1.5076801890508074) internal successors, (7656), 5079 states have internal predecessors, (7656), 0 states have call successors, (0), 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 09:43:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 7656 transitions. [2024-11-16 09:43:26,430 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 7656 transitions. Word has length 71 [2024-11-16 09:43:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:26,430 INFO L471 AbstractCegarLoop]: Abstraction has 5080 states and 7656 transitions. [2024-11-16 09:43:26,430 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 09:43:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 7656 transitions. [2024-11-16 09:43:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:26,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:26,431 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 09:43:26,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:43:26,431 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:26,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2120685125, now seen corresponding path program 1 times [2024-11-16 09:43:26,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:26,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236006489] [2024-11-16 09:43:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,612 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 09:43:26,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:26,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236006489] [2024-11-16 09:43:26,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236006489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:26,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:26,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:26,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534204528] [2024-11-16 09:43:26,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:26,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:26,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:26,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:26,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:26,614 INFO L87 Difference]: Start difference. First operand 5080 states and 7656 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 09:43:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:26,697 INFO L93 Difference]: Finished difference Result 5275 states and 7914 transitions. [2024-11-16 09:43:26,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:26,697 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 09:43:26,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:26,705 INFO L225 Difference]: With dead ends: 5275 [2024-11-16 09:43:26,705 INFO L226 Difference]: Without dead ends: 5272 [2024-11-16 09:43:26,706 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 09:43:26,707 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 09:43:26,707 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 09:43:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-11-16 09:43:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5272. [2024-11-16 09:43:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5272 states, 5270 states have (on average 1.4861480075901328) internal successors, (7832), 5271 states have internal predecessors, (7832), 0 states have call successors, (0), 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 09:43:26,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5272 states to 5272 states and 7832 transitions. [2024-11-16 09:43:26,801 INFO L78 Accepts]: Start accepts. Automaton has 5272 states and 7832 transitions. Word has length 71 [2024-11-16 09:43:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:26,801 INFO L471 AbstractCegarLoop]: Abstraction has 5272 states and 7832 transitions. [2024-11-16 09:43:26,802 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 09:43:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5272 states and 7832 transitions. [2024-11-16 09:43:26,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:43:26,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:26,802 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 09:43:26,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:43:26,803 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:26,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1851293316, now seen corresponding path program 1 times [2024-11-16 09:43:26,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:26,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561173212] [2024-11-16 09:43:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:26,851 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 09:43:26,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:26,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561173212] [2024-11-16 09:43:26,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561173212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:26,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:26,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151980311] [2024-11-16 09:43:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:26,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:26,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:26,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:26,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:26,854 INFO L87 Difference]: Start difference. First operand 5272 states and 7832 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 09:43:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:26,933 INFO L93 Difference]: Finished difference Result 12318 states and 17884 transitions. [2024-11-16 09:43:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:26,934 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 09:43:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:26,947 INFO L225 Difference]: With dead ends: 12318 [2024-11-16 09:43:26,947 INFO L226 Difference]: Without dead ends: 8603 [2024-11-16 09:43:26,953 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 09:43:26,954 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 09:43:26,954 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 09:43:26,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8603 states. [2024-11-16 09:43:27,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8603 to 8600. [2024-11-16 09:43:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8598 states have (on average 1.4449872063270528) internal successors, (12424), 8599 states have internal predecessors, (12424), 0 states have call successors, (0), 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 09:43:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 12424 transitions. [2024-11-16 09:43:27,190 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 12424 transitions. Word has length 71 [2024-11-16 09:43:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:27,191 INFO L471 AbstractCegarLoop]: Abstraction has 8600 states and 12424 transitions. [2024-11-16 09:43:27,191 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 09:43:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 12424 transitions. [2024-11-16 09:43:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:27,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:27,194 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 09:43:27,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:43:27,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:27,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1115173302, now seen corresponding path program 1 times [2024-11-16 09:43:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:27,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031704648] [2024-11-16 09:43:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:27,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:27,346 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 09:43:27,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:27,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031704648] [2024-11-16 09:43:27,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031704648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:27,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:27,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:27,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099120650] [2024-11-16 09:43:27,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:27,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:27,348 INFO L87 Difference]: Start difference. First operand 8600 states and 12424 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 09:43:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:27,849 INFO L93 Difference]: Finished difference Result 50317 states and 71318 transitions. [2024-11-16 09:43:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:27,849 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 09:43:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:27,921 INFO L225 Difference]: With dead ends: 50317 [2024-11-16 09:43:27,922 INFO L226 Difference]: Without dead ends: 45322 [2024-11-16 09:43:27,942 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 09:43:27,943 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 09:43:27,943 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 09:43:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45322 states. [2024-11-16 09:43:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45322 to 14648. [2024-11-16 09:43:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14648 states, 14646 states have (on average 1.4250990031407893) internal successors, (20872), 14647 states have internal predecessors, (20872), 0 states have call successors, (0), 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 09:43:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14648 states to 14648 states and 20872 transitions. [2024-11-16 09:43:28,526 INFO L78 Accepts]: Start accepts. Automaton has 14648 states and 20872 transitions. Word has length 94 [2024-11-16 09:43:28,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:28,526 INFO L471 AbstractCegarLoop]: Abstraction has 14648 states and 20872 transitions. [2024-11-16 09:43:28,526 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 09:43:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 14648 states and 20872 transitions. [2024-11-16 09:43:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:28,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:28,530 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 09:43:28,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:43:28,530 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:28,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:28,531 INFO L85 PathProgramCache]: Analyzing trace with hash 342632502, now seen corresponding path program 1 times [2024-11-16 09:43:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:28,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541072911] [2024-11-16 09:43:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:28,727 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 09:43:28,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541072911] [2024-11-16 09:43:28,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541072911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:28,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:28,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566949992] [2024-11-16 09:43:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:28,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:28,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:28,729 INFO L87 Difference]: Start difference. First operand 14648 states and 20872 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 09:43:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:29,685 INFO L93 Difference]: Finished difference Result 57357 states and 81206 transitions. [2024-11-16 09:43:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:29,685 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 09:43:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:29,774 INFO L225 Difference]: With dead ends: 57357 [2024-11-16 09:43:29,774 INFO L226 Difference]: Without dead ends: 50314 [2024-11-16 09:43:29,794 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 09:43:29,795 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 8115 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8115 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:29,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8115 Valid, 4034 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:29,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50314 states. [2024-11-16 09:43:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50314 to 24184. [2024-11-16 09:43:30,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24184 states, 24182 states have (on average 1.4136134314779587) internal successors, (34184), 24183 states have internal predecessors, (34184), 0 states have call successors, (0), 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 09:43:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24184 states to 24184 states and 34184 transitions. [2024-11-16 09:43:30,613 INFO L78 Accepts]: Start accepts. Automaton has 24184 states and 34184 transitions. Word has length 94 [2024-11-16 09:43:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:30,613 INFO L471 AbstractCegarLoop]: Abstraction has 24184 states and 34184 transitions. [2024-11-16 09:43:30,613 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 09:43:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 24184 states and 34184 transitions. [2024-11-16 09:43:30,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:30,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:30,617 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 09:43:30,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:43:30,618 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:30,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash -658777226, now seen corresponding path program 1 times [2024-11-16 09:43:30,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:30,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145272635] [2024-11-16 09:43:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:30,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:30,749 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 09:43:30,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145272635] [2024-11-16 09:43:30,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145272635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:30,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:30,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759342738] [2024-11-16 09:43:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:30,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:30,750 INFO L87 Difference]: Start difference. First operand 24184 states and 34184 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 09:43:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:31,572 INFO L93 Difference]: Finished difference Result 64397 states and 91062 transitions. [2024-11-16 09:43:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:31,573 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 09:43:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:31,646 INFO L225 Difference]: With dead ends: 64397 [2024-11-16 09:43:31,646 INFO L226 Difference]: Without dead ends: 57354 [2024-11-16 09:43:31,661 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 09:43:31,662 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 09:43:31,662 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 09:43:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57354 states. [2024-11-16 09:43:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57354 to 31224. [2024-11-16 09:43:32,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31224 states, 31222 states have (on average 1.4105438472871692) internal successors, (44040), 31223 states have internal predecessors, (44040), 0 states have call successors, (0), 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 09:43:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31224 states to 31224 states and 44040 transitions. [2024-11-16 09:43:32,520 INFO L78 Accepts]: Start accepts. Automaton has 31224 states and 44040 transitions. Word has length 94 [2024-11-16 09:43:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:32,521 INFO L471 AbstractCegarLoop]: Abstraction has 31224 states and 44040 transitions. [2024-11-16 09:43:32,521 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 09:43:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 31224 states and 44040 transitions. [2024-11-16 09:43:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:32,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:32,525 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 09:43:32,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:43:32,525 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:32,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash -673227082, now seen corresponding path program 1 times [2024-11-16 09:43:32,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:32,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268410328] [2024-11-16 09:43:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:32,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:32,718 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 09:43:32,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:32,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268410328] [2024-11-16 09:43:32,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268410328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:32,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:32,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943087009] [2024-11-16 09:43:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:32,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:32,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:32,720 INFO L87 Difference]: Start difference. First operand 31224 states and 44040 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 09:43:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:34,066 INFO L93 Difference]: Finished difference Result 71437 states and 100918 transitions. [2024-11-16 09:43:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:34,067 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 09:43:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:34,135 INFO L225 Difference]: With dead ends: 71437 [2024-11-16 09:43:34,135 INFO L226 Difference]: Without dead ends: 64394 [2024-11-16 09:43:34,149 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 09:43:34,150 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 09:43:34,150 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 09:43:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64394 states. [2024-11-16 09:43:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64394 to 38264. [2024-11-16 09:43:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38264 states, 38262 states have (on average 1.4086038367048246) internal successors, (53896), 38263 states have internal predecessors, (53896), 0 states have call successors, (0), 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 09:43:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38264 states to 38264 states and 53896 transitions. [2024-11-16 09:43:35,141 INFO L78 Accepts]: Start accepts. Automaton has 38264 states and 53896 transitions. Word has length 94 [2024-11-16 09:43:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:35,141 INFO L471 AbstractCegarLoop]: Abstraction has 38264 states and 53896 transitions. [2024-11-16 09:43:35,141 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 09:43:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 38264 states and 53896 transitions. [2024-11-16 09:43:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:35,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:35,146 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 09:43:35,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:43:35,146 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:35,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1418375670, now seen corresponding path program 1 times [2024-11-16 09:43:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:35,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037060655] [2024-11-16 09:43:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:35,274 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 09:43:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037060655] [2024-11-16 09:43:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037060655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:35,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942502419] [2024-11-16 09:43:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:35,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:35,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:35,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:35,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:35,276 INFO L87 Difference]: Start difference. First operand 38264 states and 53896 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 09:43:36,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:36,806 INFO L93 Difference]: Finished difference Result 78477 states and 110774 transitions. [2024-11-16 09:43:36,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:36,806 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 09:43:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:36,887 INFO L225 Difference]: With dead ends: 78477 [2024-11-16 09:43:36,888 INFO L226 Difference]: Without dead ends: 71434 [2024-11-16 09:43:36,906 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 09:43:36,907 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 8122 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:36,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 4063 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:43:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71434 states. [2024-11-16 09:43:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71434 to 45304. [2024-11-16 09:43:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45304 states, 45302 states have (on average 1.4072667873383073) internal successors, (63752), 45303 states have internal predecessors, (63752), 0 states have call successors, (0), 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 09:43:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45304 states to 45304 states and 63752 transitions. [2024-11-16 09:43:38,132 INFO L78 Accepts]: Start accepts. Automaton has 45304 states and 63752 transitions. Word has length 94 [2024-11-16 09:43:38,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:38,133 INFO L471 AbstractCegarLoop]: Abstraction has 45304 states and 63752 transitions. [2024-11-16 09:43:38,133 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 09:43:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 45304 states and 63752 transitions. [2024-11-16 09:43:38,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:38,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:38,146 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 09:43:38,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:43:38,147 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:38,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash 624706806, now seen corresponding path program 1 times [2024-11-16 09:43:38,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:38,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849180290] [2024-11-16 09:43:38,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:38,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:38,276 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 09:43:38,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:38,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849180290] [2024-11-16 09:43:38,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849180290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:43:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804156910] [2024-11-16 09:43:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:38,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:43:38,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:43:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:43:38,278 INFO L87 Difference]: Start difference. First operand 45304 states and 63752 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 09:43:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:39,901 INFO L93 Difference]: Finished difference Result 85517 states and 120630 transitions. [2024-11-16 09:43:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:43:39,901 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 09:43:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:39,985 INFO L225 Difference]: With dead ends: 85517 [2024-11-16 09:43:39,985 INFO L226 Difference]: Without dead ends: 78474 [2024-11-16 09:43:40,003 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 09:43:40,004 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8062 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8062 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:40,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8062 Valid, 4202 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:43:40,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78474 states. [2024-11-16 09:43:41,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78474 to 52344. [2024-11-16 09:43:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52344 states, 52342 states have (on average 1.4062894043024723) internal successors, (73608), 52343 states have internal predecessors, (73608), 0 states have call successors, (0), 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 09:43:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52344 states to 52344 states and 73608 transitions. [2024-11-16 09:43:41,464 INFO L78 Accepts]: Start accepts. Automaton has 52344 states and 73608 transitions. Word has length 94 [2024-11-16 09:43:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:41,464 INFO L471 AbstractCegarLoop]: Abstraction has 52344 states and 73608 transitions. [2024-11-16 09:43:41,465 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 09:43:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 52344 states and 73608 transitions. [2024-11-16 09:43:41,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:43:41,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:41,470 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 09:43:41,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:43:41,470 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:41,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash 229079768, now seen corresponding path program 1 times [2024-11-16 09:43:41,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802757430] [2024-11-16 09:43:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:41,567 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 09:43:41,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802757430] [2024-11-16 09:43:41,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802757430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:41,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:41,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:41,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598376569] [2024-11-16 09:43:41,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:41,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:41,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:41,569 INFO L87 Difference]: Start difference. First operand 52344 states and 73608 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 09:43:42,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:42,755 INFO L93 Difference]: Finished difference Result 103134 states and 144748 transitions. [2024-11-16 09:43:42,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:42,756 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 09:43:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:42,819 INFO L225 Difference]: With dead ends: 103134 [2024-11-16 09:43:42,820 INFO L226 Difference]: Without dead ends: 52347 [2024-11-16 09:43:42,850 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 09:43:42,850 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 09:43:42,851 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 09:43:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52347 states. [2024-11-16 09:43:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52347 to 52344. [2024-11-16 09:43:44,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52344 states, 52342 states have (on average 1.393145084253563) internal successors, (72920), 52343 states have internal predecessors, (72920), 0 states have call successors, (0), 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 09:43:44,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52344 states to 52344 states and 72920 transitions. [2024-11-16 09:43:44,338 INFO L78 Accepts]: Start accepts. Automaton has 52344 states and 72920 transitions. Word has length 96 [2024-11-16 09:43:44,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:44,338 INFO L471 AbstractCegarLoop]: Abstraction has 52344 states and 72920 transitions. [2024-11-16 09:43:44,338 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 09:43:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 52344 states and 72920 transitions. [2024-11-16 09:43:44,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:43:44,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:44,344 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 09:43:44,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:43:44,344 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:44,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1337179672, now seen corresponding path program 1 times [2024-11-16 09:43:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:44,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832900914] [2024-11-16 09:43:44,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:44,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:44,679 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 09:43:44,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:44,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832900914] [2024-11-16 09:43:44,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832900914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:44,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:44,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:44,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71412382] [2024-11-16 09:43:44,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:44,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:44,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:44,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:44,682 INFO L87 Difference]: Start difference. First operand 52344 states and 72920 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 09:43:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:45,020 INFO L93 Difference]: Finished difference Result 71093 states and 99108 transitions. [2024-11-16 09:43:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:45,021 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 09:43:45,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:45,045 INFO L225 Difference]: With dead ends: 71093 [2024-11-16 09:43:45,045 INFO L226 Difference]: Without dead ends: 20306 [2024-11-16 09:43:45,072 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 09:43:45,072 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 09:43:45,073 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 09:43:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20306 states. [2024-11-16 09:43:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20306 to 20296. [2024-11-16 09:43:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20296 states, 20294 states have (on average 1.3998226076672908) internal successors, (28408), 20295 states have internal predecessors, (28408), 0 states have call successors, (0), 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 09:43:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20296 states to 20296 states and 28408 transitions. [2024-11-16 09:43:45,691 INFO L78 Accepts]: Start accepts. Automaton has 20296 states and 28408 transitions. Word has length 96 [2024-11-16 09:43:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:45,693 INFO L471 AbstractCegarLoop]: Abstraction has 20296 states and 28408 transitions. [2024-11-16 09:43:45,693 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 09:43:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 20296 states and 28408 transitions. [2024-11-16 09:43:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:43:45,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:45,695 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 09:43:45,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:43:45,696 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:45,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -570866790, now seen corresponding path program 1 times [2024-11-16 09:43:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:45,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918972214] [2024-11-16 09:43:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:45,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:45,774 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 09:43:45,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:45,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918972214] [2024-11-16 09:43:45,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918972214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:45,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:45,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:45,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739039052] [2024-11-16 09:43:45,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:45,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:45,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:45,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:45,775 INFO L87 Difference]: Start difference. First operand 20296 states and 28408 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 09:43:46,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:46,059 INFO L93 Difference]: Finished difference Result 29662 states and 41372 transitions. [2024-11-16 09:43:46,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:46,060 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 09:43:46,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:46,072 INFO L225 Difference]: With dead ends: 29662 [2024-11-16 09:43:46,072 INFO L226 Difference]: Without dead ends: 10939 [2024-11-16 09:43:46,081 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 09:43:46,082 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 09:43:46,082 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 09:43:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2024-11-16 09:43:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 10936. [2024-11-16 09:43:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10936 states, 10934 states have (on average 1.401865739893909) internal successors, (15328), 10935 states have internal predecessors, (15328), 0 states have call successors, (0), 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 09:43:46,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10936 states to 10936 states and 15328 transitions. [2024-11-16 09:43:46,394 INFO L78 Accepts]: Start accepts. Automaton has 10936 states and 15328 transitions. Word has length 98 [2024-11-16 09:43:46,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:46,395 INFO L471 AbstractCegarLoop]: Abstraction has 10936 states and 15328 transitions. [2024-11-16 09:43:46,395 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 09:43:46,395 INFO L276 IsEmpty]: Start isEmpty. Operand 10936 states and 15328 transitions. [2024-11-16 09:43:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:43:46,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:46,397 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 09:43:46,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:43:46,397 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:46,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1416702177, now seen corresponding path program 1 times [2024-11-16 09:43:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:46,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061374303] [2024-11-16 09:43:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:46,503 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 09:43:46,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061374303] [2024-11-16 09:43:46,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061374303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:46,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:46,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858704120] [2024-11-16 09:43:46,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:46,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:46,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:46,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:46,507 INFO L87 Difference]: Start difference. First operand 10936 states and 15328 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 09:43:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:46,648 INFO L93 Difference]: Finished difference Result 15622 states and 21752 transitions. [2024-11-16 09:43:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:46,649 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 09:43:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:46,657 INFO L225 Difference]: With dead ends: 15622 [2024-11-16 09:43:46,657 INFO L226 Difference]: Without dead ends: 6259 [2024-11-16 09:43:46,664 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 09:43:46,665 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 09:43:46,665 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 09:43:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6259 states. [2024-11-16 09:43:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6259 to 6256. [2024-11-16 09:43:46,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 1.4147745442916533) internal successors, (8848), 6255 states have internal predecessors, (8848), 0 states have call successors, (0), 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 09:43:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 8848 transitions. [2024-11-16 09:43:46,840 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 8848 transitions. Word has length 100 [2024-11-16 09:43:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:46,841 INFO L471 AbstractCegarLoop]: Abstraction has 6256 states and 8848 transitions. [2024-11-16 09:43:46,841 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 09:43:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 8848 transitions. [2024-11-16 09:43:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:43:46,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:46,843 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 09:43:46,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:43:46,843 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:46,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1901199544, now seen corresponding path program 1 times [2024-11-16 09:43:46,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:46,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561653006] [2024-11-16 09:43:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:46,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:46,965 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 09:43:46,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:46,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561653006] [2024-11-16 09:43:46,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561653006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:46,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:46,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542962460] [2024-11-16 09:43:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:46,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:46,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:46,966 INFO L87 Difference]: Start difference. First operand 6256 states and 8848 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 09:43:47,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:47,019 INFO L93 Difference]: Finished difference Result 8602 states and 12032 transitions. [2024-11-16 09:43:47,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:47,020 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 09:43:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:47,025 INFO L225 Difference]: With dead ends: 8602 [2024-11-16 09:43:47,025 INFO L226 Difference]: Without dead ends: 3919 [2024-11-16 09:43:47,028 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 09:43:47,028 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 09:43:47,029 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 09:43:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2024-11-16 09:43:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3916. [2024-11-16 09:43:47,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3916 states, 3914 states have (on average 1.4404701073071027) internal successors, (5638), 3915 states have internal predecessors, (5638), 0 states have call successors, (0), 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 09:43:47,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5638 transitions. [2024-11-16 09:43:47,091 INFO L78 Accepts]: Start accepts. Automaton has 3916 states and 5638 transitions. Word has length 102 [2024-11-16 09:43:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:47,091 INFO L471 AbstractCegarLoop]: Abstraction has 3916 states and 5638 transitions. [2024-11-16 09:43:47,091 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 09:43:47,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3916 states and 5638 transitions. [2024-11-16 09:43:47,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:43:47,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:47,093 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 09:43:47,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:43:47,093 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:47,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash 454309583, now seen corresponding path program 1 times [2024-11-16 09:43:47,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31083354] [2024-11-16 09:43:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:47,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:47,156 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 09:43:47,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31083354] [2024-11-16 09:43:47,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31083354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:47,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:47,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:47,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138683914] [2024-11-16 09:43:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:47,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:43:47,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:43:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:43:47,158 INFO L87 Difference]: Start difference. First operand 3916 states and 5638 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 09:43:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:47,192 INFO L93 Difference]: Finished difference Result 5092 states and 7217 transitions. [2024-11-16 09:43:47,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:43:47,193 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 09:43:47,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:47,197 INFO L225 Difference]: With dead ends: 5092 [2024-11-16 09:43:47,197 INFO L226 Difference]: Without dead ends: 2749 [2024-11-16 09:43:47,199 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 09:43:47,199 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 09:43:47,199 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 09:43:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2024-11-16 09:43:47,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2746. [2024-11-16 09:43:47,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2744 states have (on average 1.4752186588921283) internal successors, (4048), 2745 states have internal predecessors, (4048), 0 states have call successors, (0), 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 09:43:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 4048 transitions. [2024-11-16 09:43:47,237 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 4048 transitions. Word has length 104 [2024-11-16 09:43:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:47,237 INFO L471 AbstractCegarLoop]: Abstraction has 2746 states and 4048 transitions. [2024-11-16 09:43:47,240 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 09:43:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 4048 transitions. [2024-11-16 09:43:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:43:47,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:47,242 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 09:43:47,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:43:47,242 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:47,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1168490634, now seen corresponding path program 1 times [2024-11-16 09:43:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974469521] [2024-11-16 09:43:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:47,534 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 09:43:47,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974469521] [2024-11-16 09:43:47,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974469521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815405856] [2024-11-16 09:43:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:47,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:47,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:47,538 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 09:43:47,546 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 09:43:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:47,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:43:47,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:48,149 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 09:43:48,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:49,049 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 09:43:49,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815405856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:49,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:49,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-16 09:43:49,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36881718] [2024-11-16 09:43:49,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:49,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 09:43:49,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:49,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 09:43:49,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-16 09:43:49,056 INFO L87 Difference]: Start difference. First operand 2746 states and 4048 transitions. Second operand has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 22 states have internal predecessors, (250), 0 states have call successors, (0), 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 09:43:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:49,504 INFO L93 Difference]: Finished difference Result 5185 states and 7309 transitions. [2024-11-16 09:43:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:43:49,505 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 22 states have internal predecessors, (250), 0 states have call successors, (0), 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 09:43:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:49,510 INFO L225 Difference]: With dead ends: 5185 [2024-11-16 09:43:49,510 INFO L226 Difference]: Without dead ends: 4012 [2024-11-16 09:43:49,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 09:43:49,511 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 16975 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16975 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:49,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16975 Valid, 6278 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:43:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2024-11-16 09:43:49,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 3976. [2024-11-16 09:43:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3976 states, 3974 states have (on average 1.422496225465526) internal successors, (5653), 3975 states have internal predecessors, (5653), 0 states have call successors, (0), 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 09:43:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3976 states to 3976 states and 5653 transitions. [2024-11-16 09:43:49,572 INFO L78 Accepts]: Start accepts. Automaton has 3976 states and 5653 transitions. Word has length 106 [2024-11-16 09:43:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:49,572 INFO L471 AbstractCegarLoop]: Abstraction has 3976 states and 5653 transitions. [2024-11-16 09:43:49,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 22 states have internal predecessors, (250), 0 states have call successors, (0), 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 09:43:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3976 states and 5653 transitions. [2024-11-16 09:43:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:43:49,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:49,574 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 09:43:49,587 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 09:43:49,777 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,SelfDestructingSolverStorable25 [2024-11-16 09:43:49,778 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:49,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:49,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1796472010, now seen corresponding path program 1 times [2024-11-16 09:43:49,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:49,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090052748] [2024-11-16 09:43:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:49,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:50,561 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 09:43:50,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090052748] [2024-11-16 09:43:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090052748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912048530] [2024-11-16 09:43:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:50,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:50,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:50,568 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 09:43:50,569 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 09:43:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:50,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:43:50,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:51,113 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 09:43:51,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:51,778 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 09:43:51,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912048530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:51,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:51,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-16 09:43:51,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93994553] [2024-11-16 09:43:51,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:51,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 09:43:51,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:51,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 09:43:51,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:43:51,781 INFO L87 Difference]: Start difference. First operand 3976 states and 5653 transitions. Second operand has 29 states, 29 states have (on average 9.931034482758621) internal successors, (288), 28 states have internal predecessors, (288), 0 states have call successors, (0), 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 09:43:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:54,463 INFO L93 Difference]: Finished difference Result 15637 states and 21177 transitions. [2024-11-16 09:43:54,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-16 09:43:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.931034482758621) internal successors, (288), 28 states have internal predecessors, (288), 0 states have call successors, (0), 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 09:43:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:54,477 INFO L225 Difference]: With dead ends: 15637 [2024-11-16 09:43:54,478 INFO L226 Difference]: Without dead ends: 13234 [2024-11-16 09:43:54,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=961, Invalid=3869, Unknown=0, NotChecked=0, Total=4830 [2024-11-16 09:43:54,484 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 28779 mSDsluCounter, 5447 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28779 SdHoareTripleChecker+Valid, 6983 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:54,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28779 Valid, 6983 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:43:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13234 states. [2024-11-16 09:43:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13234 to 13096. [2024-11-16 09:43:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13096 states, 13094 states have (on average 1.3355735451351765) internal successors, (17488), 13095 states have internal predecessors, (17488), 0 states have call successors, (0), 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 09:43:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13096 states to 13096 states and 17488 transitions. [2024-11-16 09:43:54,786 INFO L78 Accepts]: Start accepts. Automaton has 13096 states and 17488 transitions. Word has length 106 [2024-11-16 09:43:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:54,787 INFO L471 AbstractCegarLoop]: Abstraction has 13096 states and 17488 transitions. [2024-11-16 09:43:54,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.931034482758621) internal successors, (288), 28 states have internal predecessors, (288), 0 states have call successors, (0), 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 09:43:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13096 states and 17488 transitions. [2024-11-16 09:43:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 09:43:54,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:54,790 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] [2024-11-16 09:43:54,803 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 09:43:54,990 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,SelfDestructingSolverStorable26 [2024-11-16 09:43:54,991 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:54,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash 689109616, now seen corresponding path program 1 times [2024-11-16 09:43:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:54,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567585109] [2024-11-16 09:43:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:55,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567585109] [2024-11-16 09:43:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567585109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111799691] [2024-11-16 09:43:55,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:55,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:55,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:55,358 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 09:43:55,358 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 09:43:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:55,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:43:55,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:56,271 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 09:43:56,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:57,594 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 09:43:57,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111799691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:57,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:57,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2024-11-16 09:43:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841222456] [2024-11-16 09:43:57,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:57,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 09:43:57,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 09:43:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2024-11-16 09:43:57,596 INFO L87 Difference]: Start difference. First operand 13096 states and 17488 transitions. Second operand has 30 states, 30 states have (on average 9.566666666666666) internal successors, (287), 30 states have internal predecessors, (287), 0 states have call successors, (0), 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 09:44:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:01,899 INFO L93 Difference]: Finished difference Result 56050 states and 73210 transitions. [2024-11-16 09:44:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-16 09:44:01,900 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.566666666666666) internal successors, (287), 30 states have internal predecessors, (287), 0 states have call successors, (0), 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 107 [2024-11-16 09:44:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:01,948 INFO L225 Difference]: With dead ends: 56050 [2024-11-16 09:44:01,948 INFO L226 Difference]: Without dead ends: 44527 [2024-11-16 09:44:01,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1485 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1038, Invalid=4968, Unknown=0, NotChecked=0, Total=6006 [2024-11-16 09:44:01,969 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 18168 mSDsluCounter, 14426 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18168 SdHoareTripleChecker+Valid, 15950 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:01,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18168 Valid, 15950 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:44:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44527 states. [2024-11-16 09:44:02,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44527 to 23344. [2024-11-16 09:44:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23344 states, 23342 states have (on average 1.3131693942250022) internal successors, (30652), 23343 states have internal predecessors, (30652), 0 states have call successors, (0), 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 09:44:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23344 states to 23344 states and 30652 transitions. [2024-11-16 09:44:02,691 INFO L78 Accepts]: Start accepts. Automaton has 23344 states and 30652 transitions. Word has length 107 [2024-11-16 09:44:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:02,692 INFO L471 AbstractCegarLoop]: Abstraction has 23344 states and 30652 transitions. [2024-11-16 09:44:02,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.566666666666666) internal successors, (287), 30 states have internal predecessors, (287), 0 states have call successors, (0), 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 09:44:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 23344 states and 30652 transitions. [2024-11-16 09:44:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:44:02,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:02,695 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 09:44:02,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:44:02,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:02,896 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:02,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash -597819149, now seen corresponding path program 1 times [2024-11-16 09:44:02,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:02,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898798617] [2024-11-16 09:44:02,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:02,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:03,191 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 09:44:03,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:03,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898798617] [2024-11-16 09:44:03,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898798617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:03,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633812272] [2024-11-16 09:44:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:03,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:03,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:03,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:44:03,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:44:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:03,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 09:44:03,325 INFO L278 TraceCheckSpWp]: Computing forward predicates...