./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash f9c847a826e86c06ca90730b1e3bd09118dbfcc8c7c9aa6dc001687e12e32563 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:10:05,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:10:05,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 07:10:05,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:10:05,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:10:05,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:10:05,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:10:05,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:10:05,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:10:05,250 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:10:05,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:10:05,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:10:05,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:10:05,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:10:05,251 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:10:05,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:10:05,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:10:05,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:10:05,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:10:05,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:10:05,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:10:05,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:10:05,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:10:05,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:10:05,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:10:05,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:10:05,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:10:05,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:10:05,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:10:05,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:10:05,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:10:05,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:10:05,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:10:05,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:10:05,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:10:05,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:10:05,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:10:05,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:10:05,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:10:05,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9c847a826e86c06ca90730b1e3bd09118dbfcc8c7c9aa6dc001687e12e32563 [2024-10-14 07:10:05,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:10:05,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:10:05,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:10:05,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:10:05,525 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:10:05,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-10-14 07:10:07,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:10:07,267 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:10:07,269 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-10-14 07:10:07,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2fc334a/22cfdd7ecdd548848592dd1aaf43f4f1/FLAG23f087880 [2024-10-14 07:10:07,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2fc334a/22cfdd7ecdd548848592dd1aaf43f4f1 [2024-10-14 07:10:07,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:10:07,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:10:07,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:10:07,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:10:07,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:10:07,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f56da53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07, skipping insertion in model container [2024-10-14 07:10:07,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:10:07,518 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1255,1268] [2024-10-14 07:10:07,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:10:07,624 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:10:07,634 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1255,1268] [2024-10-14 07:10:07,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:10:07,714 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:10:07,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07 WrapperNode [2024-10-14 07:10:07,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:10:07,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:10:07,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:10:07,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:10:07,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,809 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 517 [2024-10-14 07:10:07,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:10:07,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:10:07,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:10:07,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:10:07,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,887 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]. [2024-10-14 07:10:07,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:10:07,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:10:07,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:10:07,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:10:07,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (1/1) ... [2024-10-14 07:10:07,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:10:07,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:07,973 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) [2024-10-14 07:10:07,976 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 [2024-10-14 07:10:08,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:10:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:10:08,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:10:08,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:10:08,141 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:10:08,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:10:08,840 INFO L? ?]: Removed 314 outVars from TransFormulas that were not future-live. [2024-10-14 07:10:08,840 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:10:08,871 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:10:08,872 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:10:08,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:08 BoogieIcfgContainer [2024-10-14 07:10:08,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:10:08,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:10:08,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:10:08,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:10:08,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:10:07" (1/3) ... [2024-10-14 07:10:08,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe65a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:08, skipping insertion in model container [2024-10-14 07:10:08,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:07" (2/3) ... [2024-10-14 07:10:08,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe65a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:08, skipping insertion in model container [2024-10-14 07:10:08,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:08" (3/3) ... [2024-10-14 07:10:08,884 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vlunc.c [2024-10-14 07:10:08,901 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:10:08,901 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:10:08,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:10:08,976 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;@368ebb13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:10:08,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:10:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.504) internal successors, (188), 126 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 07:10:08,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:08,991 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] [2024-10-14 07:10:08,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:08,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash 324490824, now seen corresponding path program 1 times [2024-10-14 07:10:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:09,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355828262] [2024-10-14 07:10:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:09,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355828262] [2024-10-14 07:10:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355828262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:09,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:09,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:09,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91653080] [2024-10-14 07:10:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:09,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:10:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:10:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:10:09,719 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.504) internal successors, (188), 126 states have internal predecessors, (188), 0 states have call successors, (0), 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 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:09,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:09,784 INFO L93 Difference]: Finished difference Result 230 states and 342 transitions. [2024-10-14 07:10:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:10:09,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-10-14 07:10:09,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:09,800 INFO L225 Difference]: With dead ends: 230 [2024-10-14 07:10:09,800 INFO L226 Difference]: Without dead ends: 128 [2024-10-14 07:10:09,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:10:09,809 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:09,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 544 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-10-14 07:10:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-10-14 07:10:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 127 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 188 transitions. [2024-10-14 07:10:09,862 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 188 transitions. Word has length 44 [2024-10-14 07:10:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:09,863 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 188 transitions. [2024-10-14 07:10:09,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 188 transitions. [2024-10-14 07:10:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 07:10:09,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:09,867 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] [2024-10-14 07:10:09,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:10:09,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:09,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:09,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1470976365, now seen corresponding path program 1 times [2024-10-14 07:10:09,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:09,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512848441] [2024-10-14 07:10:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:09,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:10,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512848441] [2024-10-14 07:10:10,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512848441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:10,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:10,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:10,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488230233] [2024-10-14 07:10:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:10,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:10:10,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:10,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:10:10,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:10:10,086 INFO L87 Difference]: Start difference. First operand 128 states and 188 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:10,135 INFO L93 Difference]: Finished difference Result 233 states and 342 transitions. [2024-10-14 07:10:10,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:10:10,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 07:10:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:10,139 INFO L225 Difference]: With dead ends: 233 [2024-10-14 07:10:10,139 INFO L226 Difference]: Without dead ends: 130 [2024-10-14 07:10:10,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:10:10,143 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:10,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 541 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:10,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-10-14 07:10:10,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-10-14 07:10:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 129 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 190 transitions. [2024-10-14 07:10:10,158 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 190 transitions. Word has length 45 [2024-10-14 07:10:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:10,158 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 190 transitions. [2024-10-14 07:10:10,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 190 transitions. [2024-10-14 07:10:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 07:10:10,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:10,162 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] [2024-10-14 07:10:10,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:10:10,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:10,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1552628673, now seen corresponding path program 1 times [2024-10-14 07:10:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570900059] [2024-10-14 07:10:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:10,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:10,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570900059] [2024-10-14 07:10:10,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570900059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:10,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:10,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:10:10,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803317830] [2024-10-14 07:10:10,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:10,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:10:10,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:10,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:10:10,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:10:10,606 INFO L87 Difference]: Start difference. First operand 130 states and 190 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:10,679 INFO L93 Difference]: Finished difference Result 240 states and 351 transitions. [2024-10-14 07:10:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 07:10:10,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-14 07:10:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:10,682 INFO L225 Difference]: With dead ends: 240 [2024-10-14 07:10:10,682 INFO L226 Difference]: Without dead ends: 135 [2024-10-14 07:10:10,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:10:10,684 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:10,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 883 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:10:10,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-14 07:10:10,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-10-14 07:10:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.462686567164179) internal successors, (196), 134 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2024-10-14 07:10:10,691 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 46 [2024-10-14 07:10:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:10,692 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2024-10-14 07:10:10,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2024-10-14 07:10:10,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 07:10:10,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:10,694 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] [2024-10-14 07:10:10,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 07:10:10,694 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:10,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1795735668, now seen corresponding path program 1 times [2024-10-14 07:10:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446815770] [2024-10-14 07:10:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:10,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:10,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:10,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446815770] [2024-10-14 07:10:10,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446815770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:10,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:10,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 07:10:10,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813950494] [2024-10-14 07:10:10,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:10,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:10:10,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:10,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:10:10,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:10,908 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:10,970 INFO L93 Difference]: Finished difference Result 256 states and 372 transitions. [2024-10-14 07:10:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:10:10,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 07:10:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:10,973 INFO L225 Difference]: With dead ends: 256 [2024-10-14 07:10:10,973 INFO L226 Difference]: Without dead ends: 146 [2024-10-14 07:10:10,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:10,976 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 5 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:10,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1056 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:10:10,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-14 07:10:10,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-10-14 07:10:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4482758620689655) internal successors, (210), 145 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 210 transitions. [2024-10-14 07:10:10,987 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 210 transitions. Word has length 47 [2024-10-14 07:10:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:10,988 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 210 transitions. [2024-10-14 07:10:10,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:10,988 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 210 transitions. [2024-10-14 07:10:10,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 07:10:10,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:10,990 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] [2024-10-14 07:10:10,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 07:10:10,990 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:10,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1940905787, now seen corresponding path program 1 times [2024-10-14 07:10:10,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:10,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229478019] [2024-10-14 07:10:10,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:10,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:11,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:11,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229478019] [2024-10-14 07:10:11,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229478019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:11,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:11,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516790543] [2024-10-14 07:10:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:11,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:11,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:11,141 INFO L87 Difference]: Start difference. First operand 146 states and 210 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:11,218 INFO L93 Difference]: Finished difference Result 362 states and 518 transitions. [2024-10-14 07:10:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 07:10:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:11,220 INFO L225 Difference]: With dead ends: 362 [2024-10-14 07:10:11,220 INFO L226 Difference]: Without dead ends: 241 [2024-10-14 07:10:11,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:11,222 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 391 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:11,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-10-14 07:10:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2024-10-14 07:10:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.4479166666666667) internal successors, (278), 192 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2024-10-14 07:10:11,232 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 47 [2024-10-14 07:10:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:11,233 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2024-10-14 07:10:11,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2024-10-14 07:10:11,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 07:10:11,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:11,235 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] [2024-10-14 07:10:11,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 07:10:11,235 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:11,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash -182507092, now seen corresponding path program 1 times [2024-10-14 07:10:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:11,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782989934] [2024-10-14 07:10:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:11,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:11,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782989934] [2024-10-14 07:10:11,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782989934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:11,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:11,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:11,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698130617] [2024-10-14 07:10:11,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:11,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:11,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:11,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:11,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:11,393 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:11,453 INFO L93 Difference]: Finished difference Result 356 states and 506 transitions. [2024-10-14 07:10:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-14 07:10:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:11,456 INFO L225 Difference]: With dead ends: 356 [2024-10-14 07:10:11,456 INFO L226 Difference]: Without dead ends: 227 [2024-10-14 07:10:11,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:11,457 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 359 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:11,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:11,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-14 07:10:11,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 187. [2024-10-14 07:10:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 1.4408602150537635) internal successors, (268), 186 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 268 transitions. [2024-10-14 07:10:11,465 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 268 transitions. Word has length 48 [2024-10-14 07:10:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:11,465 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 268 transitions. [2024-10-14 07:10:11,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 268 transitions. [2024-10-14 07:10:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 07:10:11,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:11,467 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] [2024-10-14 07:10:11,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 07:10:11,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:11,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:11,468 INFO L85 PathProgramCache]: Analyzing trace with hash 678372371, now seen corresponding path program 1 times [2024-10-14 07:10:11,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126125292] [2024-10-14 07:10:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:11,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126125292] [2024-10-14 07:10:11,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126125292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:11,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 07:10:11,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361525963] [2024-10-14 07:10:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:11,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:10:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:10:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:11,644 INFO L87 Difference]: Start difference. First operand 187 states and 268 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:11,706 INFO L93 Difference]: Finished difference Result 336 states and 479 transitions. [2024-10-14 07:10:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:10:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-14 07:10:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:11,708 INFO L225 Difference]: With dead ends: 336 [2024-10-14 07:10:11,708 INFO L226 Difference]: Without dead ends: 205 [2024-10-14 07:10:11,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:11,709 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 5 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:11,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1056 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:10:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-14 07:10:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-14 07:10:11,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.4215686274509804) internal successors, (290), 204 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 290 transitions. [2024-10-14 07:10:11,723 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 290 transitions. Word has length 48 [2024-10-14 07:10:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:11,723 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 290 transitions. [2024-10-14 07:10:11,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 290 transitions. [2024-10-14 07:10:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 07:10:11,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:11,728 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] [2024-10-14 07:10:11,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 07:10:11,728 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:11,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:11,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1727968862, now seen corresponding path program 1 times [2024-10-14 07:10:11,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:11,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133647943] [2024-10-14 07:10:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:11,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:11,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133647943] [2024-10-14 07:10:11,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133647943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:11,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:11,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 07:10:11,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027676919] [2024-10-14 07:10:11,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:11,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:10:11,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:11,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:10:11,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:11,984 INFO L87 Difference]: Start difference. First operand 205 states and 290 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:12,040 INFO L93 Difference]: Finished difference Result 384 states and 542 transitions. [2024-10-14 07:10:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:10:12,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-14 07:10:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:12,042 INFO L225 Difference]: With dead ends: 384 [2024-10-14 07:10:12,042 INFO L226 Difference]: Without dead ends: 227 [2024-10-14 07:10:12,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:12,044 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 5 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:12,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1056 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-10-14 07:10:12,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-10-14 07:10:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.407079646017699) internal successors, (318), 226 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 318 transitions. [2024-10-14 07:10:12,057 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 318 transitions. Word has length 49 [2024-10-14 07:10:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:12,057 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 318 transitions. [2024-10-14 07:10:12,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 318 transitions. [2024-10-14 07:10:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 07:10:12,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:12,060 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] [2024-10-14 07:10:12,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 07:10:12,060 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:12,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash -945693783, now seen corresponding path program 1 times [2024-10-14 07:10:12,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:12,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060278707] [2024-10-14 07:10:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:12,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:12,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:12,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060278707] [2024-10-14 07:10:12,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060278707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:12,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:12,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:12,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432199641] [2024-10-14 07:10:12,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:12,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:12,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:12,241 INFO L87 Difference]: Start difference. First operand 227 states and 318 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:12,311 INFO L93 Difference]: Finished difference Result 427 states and 594 transitions. [2024-10-14 07:10:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:12,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-14 07:10:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:12,315 INFO L225 Difference]: With dead ends: 427 [2024-10-14 07:10:12,315 INFO L226 Difference]: Without dead ends: 265 [2024-10-14 07:10:12,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:12,317 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 375 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:12,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-10-14 07:10:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 217. [2024-10-14 07:10:12,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3981481481481481) internal successors, (302), 216 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 302 transitions. [2024-10-14 07:10:12,329 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 302 transitions. Word has length 49 [2024-10-14 07:10:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:12,329 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 302 transitions. [2024-10-14 07:10:12,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 302 transitions. [2024-10-14 07:10:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 07:10:12,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:12,331 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] [2024-10-14 07:10:12,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 07:10:12,331 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:12,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash -270081691, now seen corresponding path program 1 times [2024-10-14 07:10:12,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:12,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748320964] [2024-10-14 07:10:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:12,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:12,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:12,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748320964] [2024-10-14 07:10:12,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748320964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:12,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:12,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 07:10:12,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344997361] [2024-10-14 07:10:12,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:12,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 07:10:12,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:12,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 07:10:12,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:12,513 INFO L87 Difference]: Start difference. First operand 217 states and 302 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:12,577 INFO L93 Difference]: Finished difference Result 416 states and 578 transitions. [2024-10-14 07:10:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 07:10:12,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-10-14 07:10:12,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:12,579 INFO L225 Difference]: With dead ends: 416 [2024-10-14 07:10:12,579 INFO L226 Difference]: Without dead ends: 239 [2024-10-14 07:10:12,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:12,580 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 5 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:12,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1056 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 07:10:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-14 07:10:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-10-14 07:10:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.3865546218487395) internal successors, (330), 238 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 330 transitions. [2024-10-14 07:10:12,588 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 330 transitions. Word has length 50 [2024-10-14 07:10:12,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:12,588 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 330 transitions. [2024-10-14 07:10:12,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 330 transitions. [2024-10-14 07:10:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 07:10:12,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:12,590 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] [2024-10-14 07:10:12,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 07:10:12,591 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:12,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:12,591 INFO L85 PathProgramCache]: Analyzing trace with hash 348355518, now seen corresponding path program 1 times [2024-10-14 07:10:12,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:12,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242002153] [2024-10-14 07:10:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:12,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:12,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:12,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242002153] [2024-10-14 07:10:12,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242002153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:12,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:12,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:12,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890048302] [2024-10-14 07:10:12,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:12,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:12,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:12,724 INFO L87 Difference]: Start difference. First operand 239 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:12,784 INFO L93 Difference]: Finished difference Result 443 states and 606 transitions. [2024-10-14 07:10:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-10-14 07:10:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:12,786 INFO L225 Difference]: With dead ends: 443 [2024-10-14 07:10:12,786 INFO L226 Difference]: Without dead ends: 261 [2024-10-14 07:10:12,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:12,787 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 319 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:12,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-10-14 07:10:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 229. [2024-10-14 07:10:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.3771929824561404) internal successors, (314), 228 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 314 transitions. [2024-10-14 07:10:12,793 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 314 transitions. Word has length 50 [2024-10-14 07:10:12,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:12,794 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 314 transitions. [2024-10-14 07:10:12,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 314 transitions. [2024-10-14 07:10:12,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 07:10:12,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:12,795 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] [2024-10-14 07:10:12,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 07:10:12,795 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:12,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1875341872, now seen corresponding path program 1 times [2024-10-14 07:10:12,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:12,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625102395] [2024-10-14 07:10:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:12,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:12,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:12,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:12,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625102395] [2024-10-14 07:10:12,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625102395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:12,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:12,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:10:12,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447776745] [2024-10-14 07:10:12,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:12,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:12,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:12,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:12,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:12,918 INFO L87 Difference]: Start difference. First operand 229 states and 314 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:12,950 INFO L93 Difference]: Finished difference Result 429 states and 587 transitions. [2024-10-14 07:10:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-14 07:10:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:12,951 INFO L225 Difference]: With dead ends: 429 [2024-10-14 07:10:12,952 INFO L226 Difference]: Without dead ends: 245 [2024-10-14 07:10:12,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:12,954 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 4 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:12,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 720 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:12,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-14 07:10:12,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2024-10-14 07:10:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 244 states have (on average 1.3688524590163935) internal successors, (334), 244 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2024-10-14 07:10:12,962 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 51 [2024-10-14 07:10:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:12,962 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2024-10-14 07:10:12,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2024-10-14 07:10:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 07:10:12,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:12,963 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] [2024-10-14 07:10:12,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 07:10:12,964 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:12,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1997243159, now seen corresponding path program 1 times [2024-10-14 07:10:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:12,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445554504] [2024-10-14 07:10:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:13,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:13,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445554504] [2024-10-14 07:10:13,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445554504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:13,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:13,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:13,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105116679] [2024-10-14 07:10:13,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:13,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:13,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:13,090 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:13,156 INFO L93 Difference]: Finished difference Result 466 states and 630 transitions. [2024-10-14 07:10:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-14 07:10:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:13,158 INFO L225 Difference]: With dead ends: 466 [2024-10-14 07:10:13,158 INFO L226 Difference]: Without dead ends: 267 [2024-10-14 07:10:13,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:13,160 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 311 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:13,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-10-14 07:10:13,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 235. [2024-10-14 07:10:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.358974358974359) internal successors, (318), 234 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 318 transitions. [2024-10-14 07:10:13,166 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 318 transitions. Word has length 51 [2024-10-14 07:10:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:13,166 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 318 transitions. [2024-10-14 07:10:13,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,167 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 318 transitions. [2024-10-14 07:10:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 07:10:13,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:13,167 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] [2024-10-14 07:10:13,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 07:10:13,168 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:13,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash 756372407, now seen corresponding path program 1 times [2024-10-14 07:10:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:13,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898281542] [2024-10-14 07:10:13,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:13,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:13,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898281542] [2024-10-14 07:10:13,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898281542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:10:13,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:10:13,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:10:13,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116781814] [2024-10-14 07:10:13,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:10:13,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:10:13,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:13,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:10:13,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:10:13,282 INFO L87 Difference]: Start difference. First operand 235 states and 318 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:13,347 INFO L93 Difference]: Finished difference Result 436 states and 590 transitions. [2024-10-14 07:10:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:10:13,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-10-14 07:10:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:13,350 INFO L225 Difference]: With dead ends: 436 [2024-10-14 07:10:13,350 INFO L226 Difference]: Without dead ends: 236 [2024-10-14 07:10:13,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:10:13,351 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 289 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:13,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 523 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:10:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-14 07:10:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 211. [2024-10-14 07:10:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.3714285714285714) internal successors, (288), 210 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 288 transitions. [2024-10-14 07:10:13,358 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 288 transitions. Word has length 52 [2024-10-14 07:10:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:13,358 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 288 transitions. [2024-10-14 07:10:13,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 288 transitions. [2024-10-14 07:10:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 07:10:13,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:13,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 07:10:13,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 07:10:13,360 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:13,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2129565747, now seen corresponding path program 1 times [2024-10-14 07:10:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:13,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268820221] [2024-10-14 07:10:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:15,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268820221] [2024-10-14 07:10:15,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268820221] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:10:15,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82319763] [2024-10-14 07:10:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:15,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:10:15,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:15,370 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) [2024-10-14 07:10:15,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 07:10:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:15,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 167 conjuncts are in the unsatisfiable core [2024-10-14 07:10:15,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:10:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:18,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 07:10:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:22,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82319763] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 07:10:22,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 07:10:22,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 24, 25] total 57 [2024-10-14 07:10:22,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046732528] [2024-10-14 07:10:22,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 07:10:22,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-10-14 07:10:22,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:22,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-10-14 07:10:22,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=2941, Unknown=0, NotChecked=0, Total=3306 [2024-10-14 07:10:22,220 INFO L87 Difference]: Start difference. First operand 211 states and 288 transitions. Second operand has 58 states, 58 states have (on average 4.827586206896552) internal successors, (280), 57 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) [2024-10-14 07:10:29,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:29,305 INFO L93 Difference]: Finished difference Result 1001 states and 1385 transitions. [2024-10-14 07:10:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-10-14 07:10:29,306 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.827586206896552) internal successors, (280), 57 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 98 [2024-10-14 07:10:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:29,309 INFO L225 Difference]: With dead ends: 1001 [2024-10-14 07:10:29,309 INFO L226 Difference]: Without dead ends: 839 [2024-10-14 07:10:29,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8666 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2738, Invalid=23022, Unknown=0, NotChecked=0, Total=25760 [2024-10-14 07:10:29,320 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2623 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 3277 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:29,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2623 Valid, 3210 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 3277 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 07:10:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-10-14 07:10:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 522. [2024-10-14 07:10:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 1.383877159309021) internal successors, (721), 521 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 721 transitions. [2024-10-14 07:10:29,332 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 721 transitions. Word has length 98 [2024-10-14 07:10:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:29,332 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 721 transitions. [2024-10-14 07:10:29,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.827586206896552) internal successors, (280), 57 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) [2024-10-14 07:10:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 721 transitions. [2024-10-14 07:10:29,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 07:10:29,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:29,334 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 07:10:29,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 07:10:29,538 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,SelfDestructingSolverStorable14 [2024-10-14 07:10:29,539 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:29,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:29,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1813073062, now seen corresponding path program 1 times [2024-10-14 07:10:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:29,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595635939] [2024-10-14 07:10:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:31,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:31,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595635939] [2024-10-14 07:10:31,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595635939] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:10:31,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101488619] [2024-10-14 07:10:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:31,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:10:31,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:31,196 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) [2024-10-14 07:10:31,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 07:10:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:31,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 145 conjuncts are in the unsatisfiable core [2024-10-14 07:10:31,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:10:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:33,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 07:10:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101488619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 07:10:36,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 07:10:36,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 22, 25] total 60 [2024-10-14 07:10:36,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772865477] [2024-10-14 07:10:36,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 07:10:36,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-10-14 07:10:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-10-14 07:10:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=3335, Unknown=0, NotChecked=0, Total=3660 [2024-10-14 07:10:36,210 INFO L87 Difference]: Start difference. First operand 522 states and 721 transitions. Second operand has 61 states, 61 states have (on average 4.655737704918033) internal successors, (284), 60 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:43,688 INFO L93 Difference]: Finished difference Result 1717 states and 2365 transitions. [2024-10-14 07:10:43,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-10-14 07:10:43,691 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 4.655737704918033) internal successors, (284), 60 states have internal predecessors, (284), 0 states have call successors, (0), 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 99 [2024-10-14 07:10:43,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:43,695 INFO L225 Difference]: With dead ends: 1717 [2024-10-14 07:10:43,696 INFO L226 Difference]: Without dead ends: 1271 [2024-10-14 07:10:43,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10657 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2608, Invalid=29972, Unknown=0, NotChecked=0, Total=32580 [2024-10-14 07:10:43,704 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 2373 mSDsluCounter, 4206 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 4327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:43,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2373 Valid, 4328 Invalid, 4327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4249 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-14 07:10:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-10-14 07:10:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 908. [2024-10-14 07:10:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 907 states have (on average 1.3825799338478502) internal successors, (1254), 907 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1254 transitions. [2024-10-14 07:10:43,726 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1254 transitions. Word has length 99 [2024-10-14 07:10:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:43,726 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1254 transitions. [2024-10-14 07:10:43,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 4.655737704918033) internal successors, (284), 60 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:43,726 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1254 transitions. [2024-10-14 07:10:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 07:10:43,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:43,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 07:10:43,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 07:10:43,928 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,SelfDestructingSolverStorable15 [2024-10-14 07:10:43,928 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:43,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash 46368699, now seen corresponding path program 1 times [2024-10-14 07:10:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419088470] [2024-10-14 07:10:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:45,581 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:45,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:45,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419088470] [2024-10-14 07:10:45,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419088470] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:10:45,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197131542] [2024-10-14 07:10:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:45,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:10:45,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:45,584 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) [2024-10-14 07:10:45,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 07:10:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:45,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-10-14 07:10:45,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:10:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:46,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 07:10:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:48,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197131542] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 07:10:48,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 07:10:48,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 20, 23] total 51 [2024-10-14 07:10:48,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150560892] [2024-10-14 07:10:48,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 07:10:48,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-14 07:10:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:48,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-14 07:10:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2393, Unknown=0, NotChecked=0, Total=2652 [2024-10-14 07:10:48,593 INFO L87 Difference]: Start difference. First operand 908 states and 1254 transitions. Second operand has 52 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:10:54,369 INFO L93 Difference]: Finished difference Result 2376 states and 3283 transitions. [2024-10-14 07:10:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-10-14 07:10:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 0 states have call successors, (0), 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 [2024-10-14 07:10:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:10:54,375 INFO L225 Difference]: With dead ends: 2376 [2024-10-14 07:10:54,375 INFO L226 Difference]: Without dead ends: 1551 [2024-10-14 07:10:54,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 158 SyntacticMatches, 2 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5700 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2053, Invalid=17969, Unknown=0, NotChecked=0, Total=20022 [2024-10-14 07:10:54,378 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1831 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 4346 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 5589 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 4346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:10:54,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 5589 Invalid, 4381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 4346 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 07:10:54,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-10-14 07:10:54,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1046. [2024-10-14 07:10:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 1.3818181818181818) internal successors, (1444), 1045 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:54,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1444 transitions. [2024-10-14 07:10:54,400 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1444 transitions. Word has length 100 [2024-10-14 07:10:54,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:10:54,400 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1444 transitions. [2024-10-14 07:10:54,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:10:54,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1444 transitions. [2024-10-14 07:10:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 07:10:54,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:10:54,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-10-14 07:10:54,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 07:10:54,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:10:54,603 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:10:54,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:10:54,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1037521388, now seen corresponding path program 1 times [2024-10-14 07:10:54,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:10:54,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526477647] [2024-10-14 07:10:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:54,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:10:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:10:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526477647] [2024-10-14 07:10:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526477647] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:10:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720425059] [2024-10-14 07:10:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:10:56,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:10:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:10:56,085 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) [2024-10-14 07:10:56,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 07:10:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:10:56,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 107 conjuncts are in the unsatisfiable core [2024-10-14 07:10:56,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:10:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:57,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 07:10:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:10:59,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720425059] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 07:10:59,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 07:10:59,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 18, 21] total 47 [2024-10-14 07:10:59,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042180688] [2024-10-14 07:10:59,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 07:10:59,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-14 07:10:59,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:10:59,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-14 07:10:59,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2017, Unknown=0, NotChecked=0, Total=2256 [2024-10-14 07:10:59,357 INFO L87 Difference]: Start difference. First operand 1046 states and 1444 transitions. Second operand has 48 states, 48 states have (on average 5.708333333333333) internal successors, (274), 47 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:01,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:01,931 INFO L93 Difference]: Finished difference Result 2126 states and 2924 transitions. [2024-10-14 07:11:01,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-14 07:11:01,932 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.708333333333333) internal successors, (274), 47 states have internal predecessors, (274), 0 states have call successors, (0), 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 101 [2024-10-14 07:11:01,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:01,936 INFO L225 Difference]: With dead ends: 2126 [2024-10-14 07:11:01,936 INFO L226 Difference]: Without dead ends: 1163 [2024-10-14 07:11:01,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2472 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=988, Invalid=7754, Unknown=0, NotChecked=0, Total=8742 [2024-10-14 07:11:01,939 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 1188 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:01,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 2250 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 07:11:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-10-14 07:11:01,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1071. [2024-10-14 07:11:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.3803738317757008) internal successors, (1477), 1070 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1477 transitions. [2024-10-14 07:11:01,958 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1477 transitions. Word has length 101 [2024-10-14 07:11:01,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:01,958 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1477 transitions. [2024-10-14 07:11:01,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.708333333333333) internal successors, (274), 47 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1477 transitions. [2024-10-14 07:11:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 07:11:01,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:01,963 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 07:11:01,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 07:11:02,163 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,SelfDestructingSolverStorable17 [2024-10-14 07:11:02,164 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:02,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash 161147387, now seen corresponding path program 2 times [2024-10-14 07:11:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593377613] [2024-10-14 07:11:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 59 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:07,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:07,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593377613] [2024-10-14 07:11:07,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593377613] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:11:07,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883677374] [2024-10-14 07:11:07,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 07:11:07,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:11:07,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:11:07,967 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) [2024-10-14 07:11:07,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 07:11:08,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 07:11:08,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 07:11:08,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 333 conjuncts are in the unsatisfiable core [2024-10-14 07:11:08,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:11:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 42 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:12,143 INFO L311 TraceCheckSpWp]: Computing backward predicates...