./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.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 2c167e2ddaf8948d5e7bd26982f4dbc66059753c7303cdae96f611484751ca27 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:44:27,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:44:27,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:44:27,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:44:27,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:44:27,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:44:27,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:44:27,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:44:27,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:44:27,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:44:27,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:44:27,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:44:27,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:44:27,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:44:27,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:44:27,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:44:27,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:44:27,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:44:27,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:44:27,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:44:27,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:44:27,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:44:27,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:44:27,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:44:27,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:44:27,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:44:27,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:44:27,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:44:27,341 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:44:27,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:44:27,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:44:27,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:44:27,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:44:27,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:44:27,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:44:27,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:44:27,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c167e2ddaf8948d5e7bd26982f4dbc66059753c7303cdae96f611484751ca27 [2024-11-16 09:44:27,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:44:27,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:44:27,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:44:27,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:44:27,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:44:27,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-16 09:44:28,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:44:29,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:44:29,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-16 09:44:29,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb09e3642/7bea7834f9514ba7bfbb6438553d7c56/FLAGa6c8d9897 [2024-11-16 09:44:29,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb09e3642/7bea7834f9514ba7bfbb6438553d7c56 [2024-11-16 09:44:29,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:44:29,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:44:29,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:44:29,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:44:29,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:44:29,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:44:29" (1/1) ... [2024-11-16 09:44:29,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cf4dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:29, skipping insertion in model container [2024-11-16 09:44:29,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:44:29" (1/1) ... [2024-11-16 09:44:29,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:44:29,687 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2024-11-16 09:44:29,740 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2024-11-16 09:44:30,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:44:30,208 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:44:30,245 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2024-11-16 09:44:30,255 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2024-11-16 09:44:30,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:44:30,567 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:44:30,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30 WrapperNode [2024-11-16 09:44:30,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:44:30,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:44:30,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:44:30,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:44:30,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:30,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:30,799 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-16 09:44:30,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:44:30,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:44:30,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:44:30,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:44:30,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:30,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:30,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,101 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:44:31,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,207 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:44:31,364 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:44:31,368 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:44:31,368 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:44:31,369 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (1/1) ... [2024-11-16 09:44:31,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:44:31,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:31,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:44:31,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:44:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:44:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:44:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:44:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:44:31,634 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:44:31,635 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:44:34,754 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3683: havoc calculate_output2_#t~ret43#1; [2024-11-16 09:44:34,754 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5173: havoc calculate_output3_#t~ret44#1; [2024-11-16 09:44:34,755 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2204: havoc calculate_output_#t~ret42#1; [2024-11-16 09:44:34,918 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:44:34,919 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:44:34,944 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:44:34,944 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:44:34,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:44:34 BoogieIcfgContainer [2024-11-16 09:44:34,945 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:44:34,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:44:34,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:44:34,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:44:34,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:44:29" (1/3) ... [2024-11-16 09:44:34,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6cb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:44:34, skipping insertion in model container [2024-11-16 09:44:34,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:44:30" (2/3) ... [2024-11-16 09:44:34,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f6cb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:44:34, skipping insertion in model container [2024-11-16 09:44:34,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:44:34" (3/3) ... [2024-11-16 09:44:34,951 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2024-11-16 09:44:34,964 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:44:34,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:44:35,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:44:35,026 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;@4d652eda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:44:35,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:44:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 921 states, 918 states have (on average 1.89760348583878) internal successors, (1742), 920 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:35,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:44:35,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:35,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:35,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:35,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:35,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1972820880, now seen corresponding path program 1 times [2024-11-16 09:44:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502945986] [2024-11-16 09:44:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:35,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:35,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502945986] [2024-11-16 09:44:35,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502945986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:35,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:35,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:44:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957151744] [2024-11-16 09:44:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:35,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:44:35,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:35,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:44:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:44:35,297 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 09:44:35,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:35,370 INFO L93 Difference]: Finished difference Result 1794 states and 3394 transitions. [2024-11-16 09:44:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:44:35,372 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 09:44:35,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:35,386 INFO L225 Difference]: With dead ends: 1794 [2024-11-16 09:44:35,386 INFO L226 Difference]: Without dead ends: 853 [2024-11-16 09:44:35,391 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 09:44:35,393 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 09:44:35,394 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 09:44:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-16 09:44:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2024-11-16 09:44:35,448 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 09:44:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1607 transitions. [2024-11-16 09:44:35,456 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1607 transitions. Word has length 28 [2024-11-16 09:44:35,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1607 transitions. [2024-11-16 09:44:35,457 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 09:44:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1607 transitions. [2024-11-16 09:44:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:44:35,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:35,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:35,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:44:35,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:35,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:35,459 INFO L85 PathProgramCache]: Analyzing trace with hash 284090127, now seen corresponding path program 1 times [2024-11-16 09:44:35,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:35,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166951539] [2024-11-16 09:44:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:35,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166951539] [2024-11-16 09:44:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166951539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:44:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827271337] [2024-11-16 09:44:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:35,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:44:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:44:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:35,596 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 09:44:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:35,685 INFO L93 Difference]: Finished difference Result 908 states and 1691 transitions. [2024-11-16 09:44:35,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:44:35,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-16 09:44:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:35,689 INFO L225 Difference]: With dead ends: 908 [2024-11-16 09:44:35,689 INFO L226 Difference]: Without dead ends: 853 [2024-11-16 09:44:35,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:35,691 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 0 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:35,691 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 09:44:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-16 09:44:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2024-11-16 09:44:35,706 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 09:44:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1567 transitions. [2024-11-16 09:44:35,711 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1567 transitions. Word has length 28 [2024-11-16 09:44:35,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:35,711 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1567 transitions. [2024-11-16 09:44:35,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:35,712 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1567 transitions. [2024-11-16 09:44:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 09:44:35,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:35,713 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] [2024-11-16 09:44:35,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:44:35,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:35,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1464808807, now seen corresponding path program 1 times [2024-11-16 09:44:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:35,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594687663] [2024-11-16 09:44:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:35,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:35,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594687663] [2024-11-16 09:44:35,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594687663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:35,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:35,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:35,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070977840] [2024-11-16 09:44:35,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:35,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:44:35,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:35,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:44:35,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:44:35,922 INFO L87 Difference]: Start difference. First operand 853 states and 1567 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:41,083 INFO L93 Difference]: Finished difference Result 3112 states and 5880 transitions. [2024-11-16 09:44:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:44:41,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-16 09:44:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:41,094 INFO L225 Difference]: With dead ends: 3112 [2024-11-16 09:44:41,094 INFO L226 Difference]: Without dead ends: 2357 [2024-11-16 09:44:41,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:44:41,097 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 2435 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:41,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 844 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 09:44:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-16 09:44:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2357. [2024-11-16 09:44:41,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2355 states have (on average 1.5690021231422506) internal successors, (3695), 2356 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 3695 transitions. [2024-11-16 09:44:41,138 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 3695 transitions. Word has length 62 [2024-11-16 09:44:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:41,139 INFO L471 AbstractCegarLoop]: Abstraction has 2357 states and 3695 transitions. [2024-11-16 09:44:41,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 3695 transitions. [2024-11-16 09:44:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:44:41,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:41,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:41,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:44:41,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:41,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:41,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1890415008, now seen corresponding path program 1 times [2024-11-16 09:44:41,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:41,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994052486] [2024-11-16 09:44:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:41,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:41,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:41,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994052486] [2024-11-16 09:44:41,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994052486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:41,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:41,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:41,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083043031] [2024-11-16 09:44:41,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:41,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:41,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:41,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:41,429 INFO L87 Difference]: Start difference. First operand 2357 states and 3695 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:41,680 INFO L93 Difference]: Finished difference Result 2969 states and 4655 transitions. [2024-11-16 09:44:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:44:41,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 09:44:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:41,689 INFO L225 Difference]: With dead ends: 2969 [2024-11-16 09:44:41,690 INFO L226 Difference]: Without dead ends: 2918 [2024-11-16 09:44:41,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:44:41,691 INFO L432 NwaCegarLoop]: 1563 mSDtfsCounter, 9749 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9749 SdHoareTripleChecker+Valid, 3661 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:41,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9749 Valid, 3661 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2024-11-16 09:44:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2405. [2024-11-16 09:44:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2403 states have (on average 1.5692883895131087) internal successors, (3771), 2404 states have internal predecessors, (3771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3771 transitions. [2024-11-16 09:44:41,734 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3771 transitions. Word has length 67 [2024-11-16 09:44:41,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:41,734 INFO L471 AbstractCegarLoop]: Abstraction has 2405 states and 3771 transitions. [2024-11-16 09:44:41,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3771 transitions. [2024-11-16 09:44:41,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:44:41,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:41,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:41,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:44:41,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:41,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:41,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2087950270, now seen corresponding path program 1 times [2024-11-16 09:44:41,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:41,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354686261] [2024-11-16 09:44:41,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:42,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:42,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354686261] [2024-11-16 09:44:42,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354686261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:42,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:42,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:42,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649592549] [2024-11-16 09:44:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:42,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:42,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:42,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:42,163 INFO L87 Difference]: Start difference. First operand 2405 states and 3771 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,486 INFO L93 Difference]: Finished difference Result 2507 states and 3929 transitions. [2024-11-16 09:44:42,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:42,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:44:42,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,493 INFO L225 Difference]: With dead ends: 2507 [2024-11-16 09:44:42,493 INFO L226 Difference]: Without dead ends: 2408 [2024-11-16 09:44:42,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:44:42,494 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 1536 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2024 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2024-11-16 09:44:42,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2405. [2024-11-16 09:44:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2403 states have (on average 1.5688722430295463) internal successors, (3770), 2404 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3770 transitions. [2024-11-16 09:44:42,535 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3770 transitions. Word has length 69 [2024-11-16 09:44:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:42,535 INFO L471 AbstractCegarLoop]: Abstraction has 2405 states and 3770 transitions. [2024-11-16 09:44:42,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3770 transitions. [2024-11-16 09:44:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:44:42,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:42,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:42,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:44:42,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:42,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1421870275, now seen corresponding path program 1 times [2024-11-16 09:44:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671311467] [2024-11-16 09:44:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:42,614 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 09:44:42,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:42,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671311467] [2024-11-16 09:44:42,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671311467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:42,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:42,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:42,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766608479] [2024-11-16 09:44:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:42,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:42,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:42,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,617 INFO L87 Difference]: Start difference. First operand 2405 states and 3770 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,648 INFO L93 Difference]: Finished difference Result 2591 states and 4060 transitions. [2024-11-16 09:44:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:42,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-16 09:44:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,655 INFO L225 Difference]: With dead ends: 2591 [2024-11-16 09:44:42,655 INFO L226 Difference]: Without dead ends: 2492 [2024-11-16 09:44:42,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,659 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 1494 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1648 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2024-11-16 09:44:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2489. [2024-11-16 09:44:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2487 states have (on average 1.5681544028950543) internal successors, (3900), 2488 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3900 transitions. [2024-11-16 09:44:42,702 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3900 transitions. Word has length 70 [2024-11-16 09:44:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:42,703 INFO L471 AbstractCegarLoop]: Abstraction has 2489 states and 3900 transitions. [2024-11-16 09:44:42,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3900 transitions. [2024-11-16 09:44:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:42,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:42,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:42,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:44:42,705 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:42,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:42,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1953207484, now seen corresponding path program 1 times [2024-11-16 09:44:42,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:42,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107651076] [2024-11-16 09:44:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:42,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:42,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107651076] [2024-11-16 09:44:42,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107651076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:42,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:42,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:42,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527988792] [2024-11-16 09:44:42,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:42,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:42,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:42,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:42,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,775 INFO L87 Difference]: Start difference. First operand 2489 states and 3900 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,806 INFO L93 Difference]: Finished difference Result 2682 states and 4200 transitions. [2024-11-16 09:44:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:42,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,814 INFO L225 Difference]: With dead ends: 2682 [2024-11-16 09:44:42,814 INFO L226 Difference]: Without dead ends: 2583 [2024-11-16 09:44:42,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,817 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 1510 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1712 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2024-11-16 09:44:42,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2580. [2024-11-16 09:44:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 2578 states have (on average 1.5671062839410395) internal successors, (4040), 2579 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 4040 transitions. [2024-11-16 09:44:42,851 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 4040 transitions. Word has length 71 [2024-11-16 09:44:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:42,852 INFO L471 AbstractCegarLoop]: Abstraction has 2580 states and 4040 transitions. [2024-11-16 09:44:42,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 4040 transitions. [2024-11-16 09:44:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:42,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:42,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:42,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:44:42,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:42,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1569219012, now seen corresponding path program 1 times [2024-11-16 09:44:42,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:42,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994955533] [2024-11-16 09:44:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:42,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:42,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:42,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994955533] [2024-11-16 09:44:42,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994955533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:42,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:42,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:42,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676293733] [2024-11-16 09:44:42,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:42,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:42,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:42,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,902 INFO L87 Difference]: Start difference. First operand 2580 states and 4040 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,928 INFO L93 Difference]: Finished difference Result 3098 states and 4842 transitions. [2024-11-16 09:44:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:42,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,934 INFO L225 Difference]: With dead ends: 3098 [2024-11-16 09:44:42,935 INFO L226 Difference]: Without dead ends: 2827 [2024-11-16 09:44:42,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:42,936 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 1506 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1712 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-16 09:44:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2824. [2024-11-16 09:44:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2822 states have (on average 1.56343019135365) internal successors, (4412), 2823 states have internal predecessors, (4412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 4412 transitions. [2024-11-16 09:44:42,974 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 4412 transitions. Word has length 71 [2024-11-16 09:44:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:42,974 INFO L471 AbstractCegarLoop]: Abstraction has 2824 states and 4412 transitions. [2024-11-16 09:44:42,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:42,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 4412 transitions. [2024-11-16 09:44:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:42,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:42,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:42,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:44:42,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:42,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash 567809284, now seen corresponding path program 1 times [2024-11-16 09:44:42,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:42,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475747910] [2024-11-16 09:44:42,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:42,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:43,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475747910] [2024-11-16 09:44:43,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475747910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:43,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:43,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:43,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92663672] [2024-11-16 09:44:43,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:43,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:43,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:43,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:43,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,024 INFO L87 Difference]: Start difference. First operand 2824 states and 4412 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:43,054 INFO L93 Difference]: Finished difference Result 3806 states and 5916 transitions. [2024-11-16 09:44:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:43,063 INFO L225 Difference]: With dead ends: 3806 [2024-11-16 09:44:43,063 INFO L226 Difference]: Without dead ends: 3291 [2024-11-16 09:44:43,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,065 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 1504 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:43,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1714 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2024-11-16 09:44:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 3288. [2024-11-16 09:44:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3286 states have (on average 1.5544735240413876) internal successors, (5108), 3287 states have internal predecessors, (5108), 0 states have call successors, (0), 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 09:44:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 5108 transitions. [2024-11-16 09:44:43,182 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 5108 transitions. Word has length 71 [2024-11-16 09:44:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:43,182 INFO L471 AbstractCegarLoop]: Abstraction has 3288 states and 5108 transitions. [2024-11-16 09:44:43,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 5108 transitions. [2024-11-16 09:44:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:43,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:43,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:43,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:44:43,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:43,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash 553359428, now seen corresponding path program 1 times [2024-11-16 09:44:43,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:43,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294263470] [2024-11-16 09:44:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:43,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:43,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294263470] [2024-11-16 09:44:43,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294263470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:43,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:43,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:43,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446523273] [2024-11-16 09:44:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:43,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:43,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:43,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,237 INFO L87 Difference]: Start difference. First operand 3288 states and 5108 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:43,276 INFO L93 Difference]: Finished difference Result 5150 states and 7920 transitions. [2024-11-16 09:44:43,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:43,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:43,293 INFO L225 Difference]: With dead ends: 5150 [2024-11-16 09:44:43,293 INFO L226 Difference]: Without dead ends: 4171 [2024-11-16 09:44:43,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,299 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1502 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:43,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1716 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4171 states. [2024-11-16 09:44:43,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4171 to 4168. [2024-11-16 09:44:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4168 states, 4166 states have (on average 1.5372059529524724) internal successors, (6404), 4167 states have internal predecessors, (6404), 0 states have call successors, (0), 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 09:44:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4168 states to 4168 states and 6404 transitions. [2024-11-16 09:44:43,371 INFO L78 Accepts]: Start accepts. Automaton has 4168 states and 6404 transitions. Word has length 71 [2024-11-16 09:44:43,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:43,372 INFO L471 AbstractCegarLoop]: Abstraction has 4168 states and 6404 transitions. [2024-11-16 09:44:43,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 4168 states and 6404 transitions. [2024-11-16 09:44:43,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:43,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:43,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:43,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:44:43,373 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:43,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:43,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1650005116, now seen corresponding path program 1 times [2024-11-16 09:44:43,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:43,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368344991] [2024-11-16 09:44:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:43,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:43,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368344991] [2024-11-16 09:44:43,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368344991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:43,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:43,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:43,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707769522] [2024-11-16 09:44:43,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:43,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:43,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:43,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:43,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,419 INFO L87 Difference]: Start difference. First operand 4168 states and 6404 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:43,477 INFO L93 Difference]: Finished difference Result 7694 states and 11640 transitions. [2024-11-16 09:44:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:43,488 INFO L225 Difference]: With dead ends: 7694 [2024-11-16 09:44:43,489 INFO L226 Difference]: Without dead ends: 5835 [2024-11-16 09:44:43,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:43,492 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1500 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:43,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:43,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2024-11-16 09:44:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5832. [2024-11-16 09:44:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 5830 states have (on average 1.5101200686106346) internal successors, (8804), 5831 states have internal predecessors, (8804), 0 states have call successors, (0), 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 09:44:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8804 transitions. [2024-11-16 09:44:43,590 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8804 transitions. Word has length 71 [2024-11-16 09:44:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:43,590 INFO L471 AbstractCegarLoop]: Abstraction has 5832 states and 8804 transitions. [2024-11-16 09:44:43,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8804 transitions. [2024-11-16 09:44:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:43,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:43,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:43,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:44:43,591 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:43,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:43,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2120685125, now seen corresponding path program 1 times [2024-11-16 09:44:43,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:43,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384398218] [2024-11-16 09:44:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:43,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:43,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:43,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384398218] [2024-11-16 09:44:43,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384398218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:43,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:43,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:43,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253208493] [2024-11-16 09:44:43,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:43,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:43,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:43,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:43,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:43,790 INFO L87 Difference]: Start difference. First operand 5832 states and 8804 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:43,872 INFO L93 Difference]: Finished difference Result 6027 states and 9062 transitions. [2024-11-16 09:44:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:43,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:43,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:43,880 INFO L225 Difference]: With dead ends: 6027 [2024-11-16 09:44:43,880 INFO L226 Difference]: Without dead ends: 6024 [2024-11-16 09:44:43,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:43,882 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 0 mSDsluCounter, 9353 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10914 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:43,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10914 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6024 states. [2024-11-16 09:44:43,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6024 to 6024. [2024-11-16 09:44:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6024 states, 6022 states have (on average 1.4911989372301562) internal successors, (8980), 6023 states have internal predecessors, (8980), 0 states have call successors, (0), 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 09:44:43,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6024 states to 6024 states and 8980 transitions. [2024-11-16 09:44:43,976 INFO L78 Accepts]: Start accepts. Automaton has 6024 states and 8980 transitions. Word has length 71 [2024-11-16 09:44:43,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:43,977 INFO L471 AbstractCegarLoop]: Abstraction has 6024 states and 8980 transitions. [2024-11-16 09:44:43,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:43,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6024 states and 8980 transitions. [2024-11-16 09:44:43,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:43,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:43,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:43,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:44:43,978 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:43,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:43,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1851293316, now seen corresponding path program 1 times [2024-11-16 09:44:43,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:43,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267520721] [2024-11-16 09:44:43,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:43,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:44,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267520721] [2024-11-16 09:44:44,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267520721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:44,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:44,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:44,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254541541] [2024-11-16 09:44:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:44,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:44,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:44,030 INFO L87 Difference]: Start difference. First operand 6024 states and 8980 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:44,109 INFO L93 Difference]: Finished difference Result 13070 states and 19032 transitions. [2024-11-16 09:44:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:44,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 09:44:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:44,120 INFO L225 Difference]: With dead ends: 13070 [2024-11-16 09:44:44,120 INFO L226 Difference]: Without dead ends: 9355 [2024-11-16 09:44:44,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:44,124 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 1508 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:44,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9355 states. [2024-11-16 09:44:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9355 to 9352. [2024-11-16 09:44:44,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9352 states, 9350 states have (on average 1.4515508021390375) internal successors, (13572), 9351 states have internal predecessors, (13572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9352 states to 9352 states and 13572 transitions. [2024-11-16 09:44:44,334 INFO L78 Accepts]: Start accepts. Automaton has 9352 states and 13572 transitions. Word has length 71 [2024-11-16 09:44:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:44,334 INFO L471 AbstractCegarLoop]: Abstraction has 9352 states and 13572 transitions. [2024-11-16 09:44:44,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9352 states and 13572 transitions. [2024-11-16 09:44:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:44,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:44,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:44,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:44:44,338 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:44,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:44,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1115173302, now seen corresponding path program 1 times [2024-11-16 09:44:44,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:44,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22845364] [2024-11-16 09:44:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:44,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:44:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:44,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22845364] [2024-11-16 09:44:44,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22845364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:44,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:44,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959901240] [2024-11-16 09:44:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:44,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:44,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:44,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:44,479 INFO L87 Difference]: Start difference. First operand 9352 states and 13572 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:45,166 INFO L93 Difference]: Finished difference Result 51069 states and 72466 transitions. [2024-11-16 09:44:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:45,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:45,227 INFO L225 Difference]: With dead ends: 51069 [2024-11-16 09:44:45,227 INFO L226 Difference]: Without dead ends: 46074 [2024-11-16 09:44:45,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:45,239 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 8054 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 4026 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 09:44:45,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8054 Valid, 4026 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:45,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46074 states. [2024-11-16 09:44:45,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46074 to 15400. [2024-11-16 09:44:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15400 states, 15398 states have (on average 1.4300558514092738) internal successors, (22020), 15399 states have internal predecessors, (22020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15400 states to 15400 states and 22020 transitions. [2024-11-16 09:44:45,635 INFO L78 Accepts]: Start accepts. Automaton has 15400 states and 22020 transitions. Word has length 94 [2024-11-16 09:44:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:45,635 INFO L471 AbstractCegarLoop]: Abstraction has 15400 states and 22020 transitions. [2024-11-16 09:44:45,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 15400 states and 22020 transitions. [2024-11-16 09:44:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:45,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:45,639 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:45,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:44:45,639 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:45,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash 342632502, now seen corresponding path program 1 times [2024-11-16 09:44:45,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:45,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321674170] [2024-11-16 09:44:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:45,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:44:45,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:45,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321674170] [2024-11-16 09:44:45,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321674170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:45,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:45,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:45,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490496383] [2024-11-16 09:44:45,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:45,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:45,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:45,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:45,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:45,770 INFO L87 Difference]: Start difference. First operand 15400 states and 22020 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:46,857 INFO L93 Difference]: Finished difference Result 58109 states and 82354 transitions. [2024-11-16 09:44:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:46,942 INFO L225 Difference]: With dead ends: 58109 [2024-11-16 09:44:46,942 INFO L226 Difference]: Without dead ends: 51066 [2024-11-16 09:44:46,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:46,965 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 09:44:46,966 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 09:44:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51066 states. [2024-11-16 09:44:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51066 to 24936. [2024-11-16 09:44:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24936 states, 24934 states have (on average 1.4170209352691105) internal successors, (35332), 24935 states have internal predecessors, (35332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24936 states to 24936 states and 35332 transitions. [2024-11-16 09:44:47,674 INFO L78 Accepts]: Start accepts. Automaton has 24936 states and 35332 transitions. Word has length 94 [2024-11-16 09:44:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:47,675 INFO L471 AbstractCegarLoop]: Abstraction has 24936 states and 35332 transitions. [2024-11-16 09:44:47,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:47,675 INFO L276 IsEmpty]: Start isEmpty. Operand 24936 states and 35332 transitions. [2024-11-16 09:44:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:47,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:47,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:47,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:44:47,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:47,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:47,683 INFO L85 PathProgramCache]: Analyzing trace with hash -658777226, now seen corresponding path program 1 times [2024-11-16 09:44:47,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:47,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098806694] [2024-11-16 09:44:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:47,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:44:47,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:47,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098806694] [2024-11-16 09:44:47,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098806694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:47,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:47,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:47,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596909800] [2024-11-16 09:44:47,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:47,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:47,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:47,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:47,806 INFO L87 Difference]: Start difference. First operand 24936 states and 35332 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:48,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:48,666 INFO L93 Difference]: Finished difference Result 65149 states and 92210 transitions. [2024-11-16 09:44:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:48,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:48,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:48,744 INFO L225 Difference]: With dead ends: 65149 [2024-11-16 09:44:48,745 INFO L226 Difference]: Without dead ends: 58106 [2024-11-16 09:44:48,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:48,763 INFO L432 NwaCegarLoop]: 1643 mSDtfsCounter, 8161 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8161 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:48,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8161 Valid, 3983 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:48,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58106 states. [2024-11-16 09:44:49,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58106 to 31976. [2024-11-16 09:44:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31976 states, 31974 states have (on average 1.4132732845436917) internal successors, (45188), 31975 states have internal predecessors, (45188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:49,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31976 states to 31976 states and 45188 transitions. [2024-11-16 09:44:49,596 INFO L78 Accepts]: Start accepts. Automaton has 31976 states and 45188 transitions. Word has length 94 [2024-11-16 09:44:49,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:49,596 INFO L471 AbstractCegarLoop]: Abstraction has 31976 states and 45188 transitions. [2024-11-16 09:44:49,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 31976 states and 45188 transitions. [2024-11-16 09:44:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:49,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:49,601 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:49,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:44:49,602 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:49,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:49,603 INFO L85 PathProgramCache]: Analyzing trace with hash -673227082, now seen corresponding path program 1 times [2024-11-16 09:44:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:49,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096760128] [2024-11-16 09:44:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:49,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:44:49,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:49,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096760128] [2024-11-16 09:44:49,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096760128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:49,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517781327] [2024-11-16 09:44:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:49,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:49,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:49,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:49,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:49,738 INFO L87 Difference]: Start difference. First operand 31976 states and 45188 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:51,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:51,115 INFO L93 Difference]: Finished difference Result 72189 states and 102066 transitions. [2024-11-16 09:44:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:51,248 INFO L225 Difference]: With dead ends: 72189 [2024-11-16 09:44:51,248 INFO L226 Difference]: Without dead ends: 65146 [2024-11-16 09:44:51,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:51,295 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 8210 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8210 SdHoareTripleChecker+Valid, 3983 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 09:44:51,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8210 Valid, 3983 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65146 states. [2024-11-16 09:44:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65146 to 39016. [2024-11-16 09:44:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39016 states, 39014 states have (on average 1.4108781463064541) internal successors, (55044), 39015 states have internal predecessors, (55044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39016 states to 39016 states and 55044 transitions. [2024-11-16 09:44:52,527 INFO L78 Accepts]: Start accepts. Automaton has 39016 states and 55044 transitions. Word has length 94 [2024-11-16 09:44:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:52,527 INFO L471 AbstractCegarLoop]: Abstraction has 39016 states and 55044 transitions. [2024-11-16 09:44:52,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 39016 states and 55044 transitions. [2024-11-16 09:44:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:52,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:52,532 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:52,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:44:52,533 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:52,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:52,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1418375670, now seen corresponding path program 1 times [2024-11-16 09:44:52,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:52,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585418914] [2024-11-16 09:44:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:52,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:44:52,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:52,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585418914] [2024-11-16 09:44:52,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585418914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:52,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:52,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:52,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490051358] [2024-11-16 09:44:52,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:52,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:52,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:52,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:52,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:52,663 INFO L87 Difference]: Start difference. First operand 39016 states and 55044 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:54,009 INFO L93 Difference]: Finished difference Result 79229 states and 111922 transitions. [2024-11-16 09:44:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:54,091 INFO L225 Difference]: With dead ends: 79229 [2024-11-16 09:44:54,091 INFO L226 Difference]: Without dead ends: 72186 [2024-11-16 09:44:54,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:54,109 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 8122 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8122 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:54,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8122 Valid, 4063 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:44:54,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72186 states. [2024-11-16 09:44:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72186 to 46056. [2024-11-16 09:44:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46056 states, 46054 states have (on average 1.409215269032006) internal successors, (64900), 46055 states have internal predecessors, (64900), 0 states have call successors, (0), 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 09:44:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46056 states to 46056 states and 64900 transitions. [2024-11-16 09:44:55,636 INFO L78 Accepts]: Start accepts. Automaton has 46056 states and 64900 transitions. Word has length 94 [2024-11-16 09:44:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:55,636 INFO L471 AbstractCegarLoop]: Abstraction has 46056 states and 64900 transitions. [2024-11-16 09:44:55,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 46056 states and 64900 transitions. [2024-11-16 09:44:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:55,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:55,641 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:55,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:44:55,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:55,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:55,642 INFO L85 PathProgramCache]: Analyzing trace with hash 624706806, now seen corresponding path program 1 times [2024-11-16 09:44:55,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:55,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78902059] [2024-11-16 09:44:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:55,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:44:55,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:55,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78902059] [2024-11-16 09:44:55,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78902059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:55,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:55,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:55,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808537092] [2024-11-16 09:44:55,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:55,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:55,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:55,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:55,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:55,776 INFO L87 Difference]: Start difference. First operand 46056 states and 64900 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:57,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:57,514 INFO L93 Difference]: Finished difference Result 86269 states and 121778 transitions. [2024-11-16 09:44:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:57,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:44:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:57,605 INFO L225 Difference]: With dead ends: 86269 [2024-11-16 09:44:57,606 INFO L226 Difference]: Without dead ends: 79226 [2024-11-16 09:44:57,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:44:57,626 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 09:44:57,626 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 09:44:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79226 states. [2024-11-16 09:44:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79226 to 53096. [2024-11-16 09:44:59,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53096 states, 53094 states have (on average 1.4079933702489924) internal successors, (74756), 53095 states have internal predecessors, (74756), 0 states have call successors, (0), 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 09:44:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53096 states to 53096 states and 74756 transitions. [2024-11-16 09:44:59,134 INFO L78 Accepts]: Start accepts. Automaton has 53096 states and 74756 transitions. Word has length 94 [2024-11-16 09:44:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:59,134 INFO L471 AbstractCegarLoop]: Abstraction has 53096 states and 74756 transitions. [2024-11-16 09:44:59,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:44:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 53096 states and 74756 transitions. [2024-11-16 09:44:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:44:59,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:59,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:44:59,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:44:59,141 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:59,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 229079768, now seen corresponding path program 1 times [2024-11-16 09:44:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283065065] [2024-11-16 09:44:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:59,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:59,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283065065] [2024-11-16 09:44:59,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283065065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:59,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:59,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:59,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861160181] [2024-11-16 09:44:59,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:59,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:59,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:59,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:59,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:59,210 INFO L87 Difference]: Start difference. First operand 53096 states and 74756 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 09:45:00,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:00,628 INFO L93 Difference]: Finished difference Result 103886 states and 145896 transitions. [2024-11-16 09:45:00,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:00,628 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 09:45:00,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:00,693 INFO L225 Difference]: With dead ends: 103886 [2024-11-16 09:45:00,693 INFO L226 Difference]: Without dead ends: 53099 [2024-11-16 09:45:00,727 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 09:45:00,728 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 09:45:00,728 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 09:45:00,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53099 states. [2024-11-16 09:45:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53099 to 53096. [2024-11-16 09:45:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53096 states, 53094 states have (on average 1.395035220552228) internal successors, (74068), 53095 states have internal predecessors, (74068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53096 states to 53096 states and 74068 transitions. [2024-11-16 09:45:02,083 INFO L78 Accepts]: Start accepts. Automaton has 53096 states and 74068 transitions. Word has length 96 [2024-11-16 09:45:02,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:02,083 INFO L471 AbstractCegarLoop]: Abstraction has 53096 states and 74068 transitions. [2024-11-16 09:45:02,083 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 09:45:02,084 INFO L276 IsEmpty]: Start isEmpty. Operand 53096 states and 74068 transitions. [2024-11-16 09:45:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:02,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:02,087 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 09:45:02,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:45:02,087 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:02,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1337179672, now seen corresponding path program 1 times [2024-11-16 09:45:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:02,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107470944] [2024-11-16 09:45:02,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:02,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:02,294 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 09:45:02,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:02,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107470944] [2024-11-16 09:45:02,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107470944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:02,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:02,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:02,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208314793] [2024-11-16 09:45:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:02,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:02,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:02,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:02,296 INFO L87 Difference]: Start difference. First operand 53096 states and 74068 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 09:45:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:02,849 INFO L93 Difference]: Finished difference Result 71845 states and 100256 transitions. [2024-11-16 09:45:02,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:02,850 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 09:45:02,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:02,876 INFO L225 Difference]: With dead ends: 71845 [2024-11-16 09:45:02,877 INFO L226 Difference]: Without dead ends: 21058 [2024-11-16 09:45:02,908 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 09:45:02,909 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 09:45:02,909 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 09:45:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21058 states. [2024-11-16 09:45:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21058 to 21048. [2024-11-16 09:45:03,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21048 states, 21046 states have (on average 1.404352370996864) internal successors, (29556), 21047 states have internal predecessors, (29556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21048 states to 21048 states and 29556 transitions. [2024-11-16 09:45:03,469 INFO L78 Accepts]: Start accepts. Automaton has 21048 states and 29556 transitions. Word has length 96 [2024-11-16 09:45:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:03,470 INFO L471 AbstractCegarLoop]: Abstraction has 21048 states and 29556 transitions. [2024-11-16 09:45:03,470 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 09:45:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 21048 states and 29556 transitions. [2024-11-16 09:45:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:45:03,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:03,472 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 09:45:03,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:45:03,473 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:03,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:03,473 INFO L85 PathProgramCache]: Analyzing trace with hash -570866790, now seen corresponding path program 1 times [2024-11-16 09:45:03,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:03,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248868869] [2024-11-16 09:45:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:03,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:03,531 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 09:45:03,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:03,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248868869] [2024-11-16 09:45:03,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248868869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:03,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:03,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798880733] [2024-11-16 09:45:03,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:03,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:03,533 INFO L87 Difference]: Start difference. First operand 21048 states and 29556 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 09:45:03,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:03,784 INFO L93 Difference]: Finished difference Result 30414 states and 42520 transitions. [2024-11-16 09:45:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:03,785 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 09:45:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:03,802 INFO L225 Difference]: With dead ends: 30414 [2024-11-16 09:45:03,802 INFO L226 Difference]: Without dead ends: 11691 [2024-11-16 09:45:03,812 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 09:45:03,813 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 09:45:03,813 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 09:45:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11691 states. [2024-11-16 09:45:04,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11691 to 11688. [2024-11-16 09:45:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11688 states, 11686 states have (on average 1.409892178675338) internal successors, (16476), 11687 states have internal predecessors, (16476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11688 states to 11688 states and 16476 transitions. [2024-11-16 09:45:04,037 INFO L78 Accepts]: Start accepts. Automaton has 11688 states and 16476 transitions. Word has length 98 [2024-11-16 09:45:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:04,037 INFO L471 AbstractCegarLoop]: Abstraction has 11688 states and 16476 transitions. [2024-11-16 09:45:04,037 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 09:45:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 11688 states and 16476 transitions. [2024-11-16 09:45:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:45:04,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:04,039 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 09:45:04,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:45:04,039 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:04,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1416702177, now seen corresponding path program 1 times [2024-11-16 09:45:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010890419] [2024-11-16 09:45:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:04,106 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 09:45:04,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:04,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010890419] [2024-11-16 09:45:04,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010890419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:04,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:04,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:04,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232946741] [2024-11-16 09:45:04,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:04,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:04,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:04,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:04,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:04,109 INFO L87 Difference]: Start difference. First operand 11688 states and 16476 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 09:45:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:04,202 INFO L93 Difference]: Finished difference Result 16374 states and 22900 transitions. [2024-11-16 09:45:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:04,202 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 09:45:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:04,210 INFO L225 Difference]: With dead ends: 16374 [2024-11-16 09:45:04,210 INFO L226 Difference]: Without dead ends: 7011 [2024-11-16 09:45:04,215 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 09:45:04,216 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 09:45:04,216 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 09:45:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7011 states. [2024-11-16 09:45:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 7008. [2024-11-16 09:45:04,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7006 states have (on average 1.426777048244362) internal successors, (9996), 7007 states have internal predecessors, (9996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 9996 transitions. [2024-11-16 09:45:04,359 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 9996 transitions. Word has length 100 [2024-11-16 09:45:04,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:04,360 INFO L471 AbstractCegarLoop]: Abstraction has 7008 states and 9996 transitions. [2024-11-16 09:45:04,360 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 09:45:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 9996 transitions. [2024-11-16 09:45:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:45:04,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:04,361 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 09:45:04,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:45:04,362 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:04,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:04,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1901199544, now seen corresponding path program 1 times [2024-11-16 09:45:04,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:04,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568649359] [2024-11-16 09:45:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:04,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:04,418 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 09:45:04,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:04,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568649359] [2024-11-16 09:45:04,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568649359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:04,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:04,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526340029] [2024-11-16 09:45:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:04,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:04,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:04,420 INFO L87 Difference]: Start difference. First operand 7008 states and 9996 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 09:45:04,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:04,476 INFO L93 Difference]: Finished difference Result 9354 states and 13180 transitions. [2024-11-16 09:45:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:04,476 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 09:45:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:04,482 INFO L225 Difference]: With dead ends: 9354 [2024-11-16 09:45:04,482 INFO L226 Difference]: Without dead ends: 4671 [2024-11-16 09:45:04,485 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 09:45:04,485 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 09:45:04,485 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 09:45:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4671 states. [2024-11-16 09:45:04,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4671 to 4668. [2024-11-16 09:45:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4668 states, 4666 states have (on average 1.4543506215173596) internal successors, (6786), 4667 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4668 states to 4668 states and 6786 transitions. [2024-11-16 09:45:04,549 INFO L78 Accepts]: Start accepts. Automaton has 4668 states and 6786 transitions. Word has length 102 [2024-11-16 09:45:04,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:04,550 INFO L471 AbstractCegarLoop]: Abstraction has 4668 states and 6786 transitions. [2024-11-16 09:45:04,550 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 09:45:04,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4668 states and 6786 transitions. [2024-11-16 09:45:04,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:45:04,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:04,551 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 09:45:04,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:45:04,551 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:04,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash 454309583, now seen corresponding path program 1 times [2024-11-16 09:45:04,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:04,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326395106] [2024-11-16 09:45:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:04,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:04,608 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 09:45:04,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:04,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326395106] [2024-11-16 09:45:04,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326395106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:04,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:04,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:04,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193938023] [2024-11-16 09:45:04,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:04,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:04,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:04,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:04,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:04,610 INFO L87 Difference]: Start difference. First operand 4668 states and 6786 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 09:45:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:04,646 INFO L93 Difference]: Finished difference Result 5844 states and 8365 transitions. [2024-11-16 09:45:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:04,647 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 09:45:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:04,651 INFO L225 Difference]: With dead ends: 5844 [2024-11-16 09:45:04,651 INFO L226 Difference]: Without dead ends: 3501 [2024-11-16 09:45:04,652 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 09:45:04,653 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 09:45:04,653 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 09:45:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2024-11-16 09:45:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3498. [2024-11-16 09:45:04,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3496 states have (on average 1.4862700228832952) internal successors, (5196), 3497 states have internal predecessors, (5196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 5196 transitions. [2024-11-16 09:45:04,690 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 5196 transitions. Word has length 104 [2024-11-16 09:45:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:04,691 INFO L471 AbstractCegarLoop]: Abstraction has 3498 states and 5196 transitions. [2024-11-16 09:45:04,691 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 09:45:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 5196 transitions. [2024-11-16 09:45:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:45:04,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:04,692 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 09:45:04,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:45:04,692 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:04,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1168490634, now seen corresponding path program 1 times [2024-11-16 09:45:04,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:04,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265716533] [2024-11-16 09:45:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:04,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:04,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:04,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265716533] [2024-11-16 09:45:04,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265716533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:04,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100148569] [2024-11-16 09:45:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:04,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:04,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:04,957 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 09:45:04,958 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 09:45:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:05,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:45:05,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:05,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:06,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100148569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:06,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:06,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:45:06,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866198459] [2024-11-16 09:45:06,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:06,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:45:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:45:06,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:45:06,563 INFO L87 Difference]: Start difference. First operand 3498 states and 5196 transitions. Second operand has 25 states, 25 states have (on average 11.68) internal successors, (292), 24 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:07,827 INFO L93 Difference]: Finished difference Result 8499 states and 11870 transitions. [2024-11-16 09:45:07,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:45:07,827 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.68) internal successors, (292), 24 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-16 09:45:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:07,835 INFO L225 Difference]: With dead ends: 8499 [2024-11-16 09:45:07,835 INFO L226 Difference]: Without dead ends: 7326 [2024-11-16 09:45:07,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=611, Invalid=2469, Unknown=0, NotChecked=0, Total=3080 [2024-11-16 09:45:07,837 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 17713 mSDsluCounter, 8262 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17713 SdHoareTripleChecker+Valid, 9795 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:07,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17713 Valid, 9795 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:45:07,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7326 states. [2024-11-16 09:45:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7326 to 7248. [2024-11-16 09:45:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7248 states, 7246 states have (on average 1.3878001656086116) internal successors, (10056), 7247 states have internal predecessors, (10056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7248 states to 7248 states and 10056 transitions. [2024-11-16 09:45:07,953 INFO L78 Accepts]: Start accepts. Automaton has 7248 states and 10056 transitions. Word has length 106 [2024-11-16 09:45:07,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:07,953 INFO L471 AbstractCegarLoop]: Abstraction has 7248 states and 10056 transitions. [2024-11-16 09:45:07,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.68) internal successors, (292), 24 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 7248 states and 10056 transitions. [2024-11-16 09:45:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:45:07,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:07,955 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 09:45:07,969 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 09:45:08,159 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 09:45:08,160 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:08,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash -414801226, now seen corresponding path program 1 times [2024-11-16 09:45:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:08,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314059102] [2024-11-16 09:45:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:08,737 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 09:45:08,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:08,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314059102] [2024-11-16 09:45:08,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314059102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:08,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877360435] [2024-11-16 09:45:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:08,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:08,740 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 09:45:08,741 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 09:45:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:08,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 09:45:08,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:09,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:09,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877360435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:09,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:09,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-16 09:45:09,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843597223] [2024-11-16 09:45:09,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:09,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 09:45:09,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:09,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 09:45:09,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-11-16 09:45:09,947 INFO L87 Difference]: Start difference. First operand 7248 states and 10056 transitions. Second operand has 28 states, 28 states have (on average 10.0) internal successors, (280), 27 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:12,206 INFO L93 Difference]: Finished difference Result 31989 states and 42710 transitions. [2024-11-16 09:45:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-16 09:45:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.0) internal successors, (280), 27 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-16 09:45:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:12,233 INFO L225 Difference]: With dead ends: 31989 [2024-11-16 09:45:12,233 INFO L226 Difference]: Without dead ends: 27066 [2024-11-16 09:45:12,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=859, Invalid=3697, Unknown=0, NotChecked=0, Total=4556 [2024-11-16 09:45:12,243 INFO L432 NwaCegarLoop]: 1547 mSDtfsCounter, 18156 mSDsluCounter, 8709 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18156 SdHoareTripleChecker+Valid, 10256 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:12,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18156 Valid, 10256 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:45:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27066 states. [2024-11-16 09:45:12,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27066 to 26808. [2024-11-16 09:45:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26808 states, 26806 states have (on average 1.315227934044617) internal successors, (35256), 26807 states have internal predecessors, (35256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26808 states to 26808 states and 35256 transitions. [2024-11-16 09:45:12,825 INFO L78 Accepts]: Start accepts. Automaton has 26808 states and 35256 transitions. Word has length 106 [2024-11-16 09:45:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:12,826 INFO L471 AbstractCegarLoop]: Abstraction has 26808 states and 35256 transitions. [2024-11-16 09:45:12,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.0) internal successors, (280), 27 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:12,826 INFO L276 IsEmpty]: Start isEmpty. Operand 26808 states and 35256 transitions. [2024-11-16 09:45:12,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:45:12,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:12,830 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:12,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:45:13,030 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 09:45:13,031 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:13,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash -944834383, now seen corresponding path program 1 times [2024-11-16 09:45:13,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:13,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074310808] [2024-11-16 09:45:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:13,274 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 09:45:13,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:13,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074310808] [2024-11-16 09:45:13,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074310808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728750355] [2024-11-16 09:45:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:13,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:13,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:13,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:45:13,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:45:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:13,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-16 09:45:13,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:15,052 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 09:45:15,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:16,931 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 09:45:16,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728750355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:16,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:16,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 35 [2024-11-16 09:45:16,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035596381] [2024-11-16 09:45:16,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:16,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-16 09:45:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-16 09:45:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1032, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 09:45:16,935 INFO L87 Difference]: Start difference. First operand 26808 states and 35256 transitions. Second operand has 36 states, 36 states have (on average 7.555555555555555) internal successors, (272), 35 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:21,108 INFO L93 Difference]: Finished difference Result 89822 states and 116904 transitions. [2024-11-16 09:45:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-16 09:45:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.555555555555555) internal successors, (272), 35 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-16 09:45:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:21,175 INFO L225 Difference]: With dead ends: 89822 [2024-11-16 09:45:21,176 INFO L226 Difference]: Without dead ends: 65339 [2024-11-16 09:45:21,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1516, Invalid=4804, Unknown=0, NotChecked=0, Total=6320 [2024-11-16 09:45:21,192 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 26714 mSDsluCounter, 13085 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26714 SdHoareTripleChecker+Valid, 14660 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:21,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26714 Valid, 14660 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:45:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65339 states. [2024-11-16 09:45:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65339 to 63752. [2024-11-16 09:45:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63752 states, 63750 states have (on average 1.2829490196078432) internal successors, (81788), 63751 states have internal predecessors, (81788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63752 states to 63752 states and 81788 transitions. [2024-11-16 09:45:22,777 INFO L78 Accepts]: Start accepts. Automaton has 63752 states and 81788 transitions. Word has length 108 [2024-11-16 09:45:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,777 INFO L471 AbstractCegarLoop]: Abstraction has 63752 states and 81788 transitions. [2024-11-16 09:45:22,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.555555555555555) internal successors, (272), 35 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 63752 states and 81788 transitions. [2024-11-16 09:45:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:45:22,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,781 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, 1] [2024-11-16 09:45:22,795 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 09:45:22,982 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 09:45:22,982 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,983 INFO L85 PathProgramCache]: Analyzing trace with hash -166687919, now seen corresponding path program 1 times [2024-11-16 09:45:22,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160572158] [2024-11-16 09:45:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:23,235 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 09:45:23,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:23,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160572158] [2024-11-16 09:45:23,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160572158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:23,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125242843] [2024-11-16 09:45:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:23,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:23,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:23,237 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 09:45:23,238 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 09:45:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:23,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:45:23,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:23,992 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 09:45:23,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:24,848 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 09:45:24,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125242843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:24,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:24,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 09:45:24,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619085728] [2024-11-16 09:45:24,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:24,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:45:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:24,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:45:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:45:24,849 INFO L87 Difference]: Start difference. First operand 63752 states and 81788 transitions. Second operand has 32 states, 32 states have (on average 9.1875) internal successors, (294), 32 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:31,082 INFO L93 Difference]: Finished difference Result 187102 states and 238848 transitions. [2024-11-16 09:45:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-16 09:45:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.1875) internal successors, (294), 32 states have internal predecessors, (294), 0 states have call successors, (0), 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 109 [2024-11-16 09:45:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:31,211 INFO L225 Difference]: With dead ends: 187102 [2024-11-16 09:45:31,211 INFO L226 Difference]: Without dead ends: 125675 [2024-11-16 09:45:31,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1345, Invalid=7211, Unknown=0, NotChecked=0, Total=8556 [2024-11-16 09:45:31,236 INFO L432 NwaCegarLoop]: 1588 mSDtfsCounter, 18111 mSDsluCounter, 17199 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18111 SdHoareTripleChecker+Valid, 18787 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:31,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18111 Valid, 18787 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:45:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125675 states. [2024-11-16 09:45:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125675 to 62904. [2024-11-16 09:45:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62904 states, 62902 states have (on average 1.2718832469555816) internal successors, (80004), 62903 states have internal predecessors, (80004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62904 states to 62904 states and 80004 transitions. [2024-11-16 09:45:33,534 INFO L78 Accepts]: Start accepts. Automaton has 62904 states and 80004 transitions. Word has length 109 [2024-11-16 09:45:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:33,534 INFO L471 AbstractCegarLoop]: Abstraction has 62904 states and 80004 transitions. [2024-11-16 09:45:33,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.1875) internal successors, (294), 32 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 62904 states and 80004 transitions. [2024-11-16 09:45:33,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:45:33,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:33,538 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, 1] [2024-11-16 09:45:33,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:45:33,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 09:45:33,743 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:33,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash 321524523, now seen corresponding path program 1 times [2024-11-16 09:45:33,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:33,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480561480] [2024-11-16 09:45:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:33,968 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 09:45:33,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:33,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480561480] [2024-11-16 09:45:33,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480561480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:33,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363218286] [2024-11-16 09:45:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:33,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:33,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:33,971 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:45:33,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:45:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:34,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:45:34,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:34,393 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 09:45:34,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:35,203 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 09:45:35,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363218286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:35,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:35,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-16 09:45:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053136844] [2024-11-16 09:45:35,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:35,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 09:45:35,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:35,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 09:45:35,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:45:35,205 INFO L87 Difference]: Start difference. First operand 62904 states and 80004 transitions. Second operand has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:39,055 INFO L93 Difference]: Finished difference Result 184065 states and 232746 transitions. [2024-11-16 09:45:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:45:39,055 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 0 states have call successors, (0), 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 109 [2024-11-16 09:45:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:39,207 INFO L225 Difference]: With dead ends: 184065 [2024-11-16 09:45:39,208 INFO L226 Difference]: Without dead ends: 123486 [2024-11-16 09:45:39,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:45:39,243 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 15318 mSDsluCounter, 5027 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15318 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:39,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15318 Valid, 6563 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:45:39,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123486 states. [2024-11-16 09:45:42,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123486 to 123480. [2024-11-16 09:45:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123480 states, 123478 states have (on average 1.2609533682113412) internal successors, (155700), 123479 states have internal predecessors, (155700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123480 states to 123480 states and 155700 transitions. [2024-11-16 09:45:43,376 INFO L78 Accepts]: Start accepts. Automaton has 123480 states and 155700 transitions. Word has length 109 [2024-11-16 09:45:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:43,377 INFO L471 AbstractCegarLoop]: Abstraction has 123480 states and 155700 transitions. [2024-11-16 09:45:43,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.954545454545455) internal successors, (241), 21 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:43,377 INFO L276 IsEmpty]: Start isEmpty. Operand 123480 states and 155700 transitions. [2024-11-16 09:45:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 09:45:43,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:43,385 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, 1, 1] [2024-11-16 09:45:43,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 09:45:43,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:43,586 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:43,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:43,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1644218732, now seen corresponding path program 1 times [2024-11-16 09:45:43,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:43,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146658467] [2024-11-16 09:45:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:44,215 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 09:45:44,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:44,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146658467] [2024-11-16 09:45:44,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146658467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:44,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360138015] [2024-11-16 09:45:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:44,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:44,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:44,218 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:45:44,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:45:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:44,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-16 09:45:44,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:45,172 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 09:45:45,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:46,666 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 09:45:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360138015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:46,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:46,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 17] total 39 [2024-11-16 09:45:46,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419970640] [2024-11-16 09:45:46,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:46,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-16 09:45:46,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:46,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-16 09:45:46,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1304, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 09:45:46,669 INFO L87 Difference]: Start difference. First operand 123480 states and 155700 transitions. Second operand has 39 states, 39 states have (on average 7.846153846153846) internal successors, (306), 39 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)