./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.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 4c7460e797ab98c965c0146dc16cfd1742d13d580f8dc4b4e90e3d1aa36d777a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:45:49,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:45:49,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:45:49,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:45:49,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:45:49,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:45:49,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:45:49,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:45:49,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:45:49,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:45:49,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:45:49,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:45:49,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:45:49,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:45:49,609 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:45:49,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:45:49,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:45:49,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:45:49,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:45:49,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:45:49,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:45:49,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:45:49,614 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:45:49,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:45:49,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:45:49,615 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:45:49,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:45:49,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:45:49,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:45:49,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:45:49,616 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:45:49,616 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:45:49,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:45:49,617 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:45:49,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:45:49,617 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:45:49,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:45:49,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:45:49,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:45:49,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c7460e797ab98c965c0146dc16cfd1742d13d580f8dc4b4e90e3d1aa36d777a [2024-11-16 11:45:49,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:45:49,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:45:49,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:45:49,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:45:49,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:45:49,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2024-11-16 11:45:51,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:45:51,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:45:51,577 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c [2024-11-16 11:45:51,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b69e24ad/ee1938336247415c967a8a4e301134c0/FLAG014f1327d [2024-11-16 11:45:51,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b69e24ad/ee1938336247415c967a8a4e301134c0 [2024-11-16 11:45:51,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:45:51,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:45:51,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:45:51,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:45:51,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:45:51,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:51" (1/1) ... [2024-11-16 11:45:51,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633e5414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:51, skipping insertion in model container [2024-11-16 11:45:51,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:45:51" (1/1) ... [2024-11-16 11:45:51,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:45:52,126 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1253,1266] [2024-11-16 11:45:52,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:45:52,271 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:45:52,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_1.c[1253,1266] [2024-11-16 11:45:52,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:45:52,363 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:45:52,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52 WrapperNode [2024-11-16 11:45:52,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:45:52,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:45:52,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:45:52,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:45:52,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,480 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 650 [2024-11-16 11:45:52,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:45:52,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:45:52,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:45:52,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:45:52,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,575 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 11:45:52,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,606 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:45:52,658 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:45:52,658 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:45:52,658 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:45:52,659 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (1/1) ... [2024-11-16 11:45:52,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:45:52,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:45:52,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:45:52,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:45:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:45:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:45:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:45:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:45:52,877 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:45:52,879 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:45:53,774 INFO L? ?]: Removed 394 outVars from TransFormulas that were not future-live. [2024-11-16 11:45:53,775 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:45:53,836 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:45:53,837 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:45:53,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:45:53 BoogieIcfgContainer [2024-11-16 11:45:53,837 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:45:53,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:45:53,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:45:53,843 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:45:53,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:45:51" (1/3) ... [2024-11-16 11:45:53,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5572d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:53, skipping insertion in model container [2024-11-16 11:45:53,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:45:52" (2/3) ... [2024-11-16 11:45:53,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5572d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:45:53, skipping insertion in model container [2024-11-16 11:45:53,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:45:53" (3/3) ... [2024-11-16 11:45:53,849 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_1.c [2024-11-16 11:45:53,866 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:45:53,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:45:53,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:45:53,946 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;@a3f9e26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:45:53,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:45:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 195 states have (on average 1.4871794871794872) internal successors, (290), 196 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) [2024-11-16 11:45:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 11:45:53,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:53,963 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] [2024-11-16 11:45:53,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:53,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:53,972 INFO L85 PathProgramCache]: Analyzing trace with hash 116187848, now seen corresponding path program 1 times [2024-11-16 11:45:53,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:53,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246251553] [2024-11-16 11:45:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:53,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:54,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:54,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246251553] [2024-11-16 11:45:54,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246251553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:54,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:54,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:45:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431698129] [2024-11-16 11:45:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:54,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:45:54,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:54,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:45:54,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:45:54,599 INFO L87 Difference]: Start difference. First operand has 197 states, 195 states have (on average 1.4871794871794872) internal successors, (290), 196 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) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:54,795 INFO L93 Difference]: Finished difference Result 353 states and 523 transitions. [2024-11-16 11:45:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:45:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-16 11:45:54,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:54,809 INFO L225 Difference]: With dead ends: 353 [2024-11-16 11:45:54,809 INFO L226 Difference]: Without dead ends: 194 [2024-11-16 11:45:54,813 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 [2024-11-16 11:45:54,817 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:54,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 703 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:54,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-16 11:45:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-16 11:45:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.4818652849740932) internal successors, (286), 193 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 286 transitions. [2024-11-16 11:45:54,874 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 286 transitions. Word has length 28 [2024-11-16 11:45:54,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:54,874 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 286 transitions. [2024-11-16 11:45:54,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 286 transitions. [2024-11-16 11:45:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 11:45:54,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:54,876 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] [2024-11-16 11:45:54,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:45:54,876 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:54,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash -548090386, now seen corresponding path program 1 times [2024-11-16 11:45:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768979892] [2024-11-16 11:45:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:55,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:55,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768979892] [2024-11-16 11:45:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768979892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:55,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:55,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:45:55,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372732737] [2024-11-16 11:45:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:55,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:45:55,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:55,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:45:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:45:55,033 INFO L87 Difference]: Start difference. First operand 194 states and 286 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:55,161 INFO L93 Difference]: Finished difference Result 352 states and 519 transitions. [2024-11-16 11:45:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:45:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 11:45:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:55,164 INFO L225 Difference]: With dead ends: 352 [2024-11-16 11:45:55,165 INFO L226 Difference]: Without dead ends: 196 [2024-11-16 11:45:55,166 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 [2024-11-16 11:45:55,167 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:55,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 700 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:45:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-16 11:45:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-16 11:45:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.476923076923077) internal successors, (288), 195 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2024-11-16 11:45:55,186 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 29 [2024-11-16 11:45:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:55,187 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2024-11-16 11:45:55,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2024-11-16 11:45:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 11:45:55,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:55,188 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] [2024-11-16 11:45:55,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:45:55,190 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:55,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:55,193 INFO L85 PathProgramCache]: Analyzing trace with hash -63688979, now seen corresponding path program 1 times [2024-11-16 11:45:55,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:55,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345594404] [2024-11-16 11:45:55,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:55,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:55,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:55,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345594404] [2024-11-16 11:45:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345594404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:55,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:55,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:45:55,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256917112] [2024-11-16 11:45:55,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:55,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:45:55,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:55,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:45:55,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:45:55,379 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:55,603 INFO L93 Difference]: Finished difference Result 485 states and 714 transitions. [2024-11-16 11:45:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:45:55,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-16 11:45:55,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:55,605 INFO L225 Difference]: With dead ends: 485 [2024-11-16 11:45:55,605 INFO L226 Difference]: Without dead ends: 327 [2024-11-16 11:45:55,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:45:55,610 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 650 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:55,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 679 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-16 11:45:55,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 198. [2024-11-16 11:45:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.4720812182741116) internal successors, (290), 197 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) [2024-11-16 11:45:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 290 transitions. [2024-11-16 11:45:55,635 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 290 transitions. Word has length 30 [2024-11-16 11:45:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:55,636 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 290 transitions. [2024-11-16 11:45:55,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 290 transitions. [2024-11-16 11:45:55,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 11:45:55,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:55,639 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:45:55,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:45:55,640 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:55,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash -137353535, now seen corresponding path program 1 times [2024-11-16 11:45:55,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:55,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653749147] [2024-11-16 11:45:55,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:55,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:56,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:56,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653749147] [2024-11-16 11:45:56,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653749147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:56,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:56,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:45:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507482727] [2024-11-16 11:45:56,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:56,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:45:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:56,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:45:56,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:45:56,619 INFO L87 Difference]: Start difference. First operand 198 states and 290 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:56,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:56,859 INFO L93 Difference]: Finished difference Result 477 states and 701 transitions. [2024-11-16 11:45:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:45:56,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-16 11:45:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:56,862 INFO L225 Difference]: With dead ends: 477 [2024-11-16 11:45:56,862 INFO L226 Difference]: Without dead ends: 319 [2024-11-16 11:45:56,863 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 [2024-11-16 11:45:56,864 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 598 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:56,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 672 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-16 11:45:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 245. [2024-11-16 11:45:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 244 states have (on average 1.4631147540983607) internal successors, (357), 244 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 357 transitions. [2024-11-16 11:45:56,877 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 357 transitions. Word has length 107 [2024-11-16 11:45:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 357 transitions. [2024-11-16 11:45:56,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 357 transitions. [2024-11-16 11:45:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 11:45:56,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:56,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:45:56,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:45:56,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:56,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:56,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2080886009, now seen corresponding path program 1 times [2024-11-16 11:45:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:56,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353226676] [2024-11-16 11:45:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:56,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:57,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:57,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353226676] [2024-11-16 11:45:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353226676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:45:57,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81306629] [2024-11-16 11:45:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:57,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:45:57,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:57,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:45:57,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:45:57,809 INFO L87 Difference]: Start difference. First operand 245 states and 357 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:58,028 INFO L93 Difference]: Finished difference Result 477 states and 699 transitions. [2024-11-16 11:45:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:45:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-16 11:45:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:58,030 INFO L225 Difference]: With dead ends: 477 [2024-11-16 11:45:58,030 INFO L226 Difference]: Without dead ends: 319 [2024-11-16 11:45:58,031 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 [2024-11-16 11:45:58,032 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 576 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:58,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 671 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-16 11:45:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 280. [2024-11-16 11:45:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.4623655913978495) internal successors, (408), 279 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2024-11-16 11:45:58,053 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 109 [2024-11-16 11:45:58,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:58,053 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2024-11-16 11:45:58,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,054 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2024-11-16 11:45:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 11:45:58,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:58,062 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:45:58,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:45:58,063 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:58,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash 701090102, now seen corresponding path program 1 times [2024-11-16 11:45:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:58,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461447271] [2024-11-16 11:45:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:58,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:58,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461447271] [2024-11-16 11:45:58,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461447271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:58,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:58,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:45:58,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356488804] [2024-11-16 11:45:58,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:58,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:45:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:45:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:45:58,745 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:58,940 INFO L93 Difference]: Finished difference Result 535 states and 782 transitions. [2024-11-16 11:45:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:45:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 11:45:58,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:58,943 INFO L225 Difference]: With dead ends: 535 [2024-11-16 11:45:58,943 INFO L226 Difference]: Without dead ends: 319 [2024-11-16 11:45:58,943 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 [2024-11-16 11:45:58,946 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 604 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:58,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 678 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-16 11:45:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 280. [2024-11-16 11:45:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.4551971326164874) internal successors, (406), 279 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 406 transitions. [2024-11-16 11:45:58,957 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 406 transitions. Word has length 110 [2024-11-16 11:45:58,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:58,958 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 406 transitions. [2024-11-16 11:45:58,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 406 transitions. [2024-11-16 11:45:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 11:45:58,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:58,963 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:45:58,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:45:58,963 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:58,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:58,964 INFO L85 PathProgramCache]: Analyzing trace with hash -90860665, now seen corresponding path program 1 times [2024-11-16 11:45:58,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:58,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286904004] [2024-11-16 11:45:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:45:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:45:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:45:59,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:45:59,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286904004] [2024-11-16 11:45:59,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286904004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:45:59,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:45:59,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:45:59,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435209234] [2024-11-16 11:45:59,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:45:59,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:45:59,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:45:59,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:45:59,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:45:59,742 INFO L87 Difference]: Start difference. First operand 280 states and 406 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:59,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:45:59,948 INFO L93 Difference]: Finished difference Result 477 states and 696 transitions. [2024-11-16 11:45:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:45:59,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-16 11:45:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:45:59,950 INFO L225 Difference]: With dead ends: 477 [2024-11-16 11:45:59,950 INFO L226 Difference]: Without dead ends: 319 [2024-11-16 11:45:59,950 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 [2024-11-16 11:45:59,951 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 557 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:45:59,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 671 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:45:59,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-16 11:45:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 300. [2024-11-16 11:45:59,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 1.4548494983277591) internal successors, (435), 299 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 435 transitions. [2024-11-16 11:45:59,962 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 435 transitions. Word has length 112 [2024-11-16 11:45:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:45:59,963 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 435 transitions. [2024-11-16 11:45:59,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:45:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 435 transitions. [2024-11-16 11:45:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 11:45:59,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:45:59,965 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:45:59,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:45:59,965 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:45:59,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:45:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1115316867, now seen corresponding path program 1 times [2024-11-16 11:45:59,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:45:59,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141475111] [2024-11-16 11:45:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:45:59,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:00,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:00,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141475111] [2024-11-16 11:46:00,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141475111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:00,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:00,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:00,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926928814] [2024-11-16 11:46:00,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:00,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:00,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:00,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:00,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:00,685 INFO L87 Difference]: Start difference. First operand 300 states and 435 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:00,961 INFO L93 Difference]: Finished difference Result 485 states and 707 transitions. [2024-11-16 11:46:00,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:00,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-16 11:46:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:00,965 INFO L225 Difference]: With dead ends: 485 [2024-11-16 11:46:00,966 INFO L226 Difference]: Without dead ends: 327 [2024-11-16 11:46:00,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:00,967 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 576 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:00,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1108 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-16 11:46:00,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 303. [2024-11-16 11:46:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 302 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 439 transitions. [2024-11-16 11:46:00,975 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 439 transitions. Word has length 113 [2024-11-16 11:46:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:00,976 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 439 transitions. [2024-11-16 11:46:00,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:00,976 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 439 transitions. [2024-11-16 11:46:00,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 11:46:00,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:00,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:00,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:46:00,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:00,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:00,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1094481438, now seen corresponding path program 1 times [2024-11-16 11:46:00,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:00,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607583399] [2024-11-16 11:46:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:00,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:01,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:01,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607583399] [2024-11-16 11:46:01,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607583399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:01,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:01,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:01,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820747848] [2024-11-16 11:46:01,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:01,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:01,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:01,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:01,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:01,665 INFO L87 Difference]: Start difference. First operand 303 states and 439 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:01,873 INFO L93 Difference]: Finished difference Result 482 states and 702 transitions. [2024-11-16 11:46:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:01,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-16 11:46:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:01,876 INFO L225 Difference]: With dead ends: 482 [2024-11-16 11:46:01,876 INFO L226 Difference]: Without dead ends: 324 [2024-11-16 11:46:01,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:01,877 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 549 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:01,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 668 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-16 11:46:01,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 322. [2024-11-16 11:46:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.4517133956386292) internal successors, (466), 321 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 466 transitions. [2024-11-16 11:46:01,886 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 466 transitions. Word has length 114 [2024-11-16 11:46:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:01,887 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 466 transitions. [2024-11-16 11:46:01,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 466 transitions. [2024-11-16 11:46:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 11:46:01,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:01,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:01,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 11:46:01,889 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:01,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:01,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1612616713, now seen corresponding path program 1 times [2024-11-16 11:46:01,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:01,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151342112] [2024-11-16 11:46:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:01,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:02,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:02,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151342112] [2024-11-16 11:46:02,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151342112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:02,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:02,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:02,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212500321] [2024-11-16 11:46:02,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:02,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:02,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:02,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:02,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:02,508 INFO L87 Difference]: Start difference. First operand 322 states and 466 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:02,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:02,792 INFO L93 Difference]: Finished difference Result 487 states and 708 transitions. [2024-11-16 11:46:02,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:02,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-16 11:46:02,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:02,795 INFO L225 Difference]: With dead ends: 487 [2024-11-16 11:46:02,795 INFO L226 Difference]: Without dead ends: 329 [2024-11-16 11:46:02,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:02,796 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 557 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:02,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1105 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-16 11:46:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 325. [2024-11-16 11:46:02,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.4506172839506173) internal successors, (470), 324 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 470 transitions. [2024-11-16 11:46:02,804 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 470 transitions. Word has length 115 [2024-11-16 11:46:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:02,804 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 470 transitions. [2024-11-16 11:46:02,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 470 transitions. [2024-11-16 11:46:02,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 11:46:02,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:02,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:02,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 11:46:02,808 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:02,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1160395805, now seen corresponding path program 1 times [2024-11-16 11:46:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833382131] [2024-11-16 11:46:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:03,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:03,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833382131] [2024-11-16 11:46:03,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833382131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:03,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:03,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:03,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289785837] [2024-11-16 11:46:03,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:03,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:03,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:03,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:03,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:03,413 INFO L87 Difference]: Start difference. First operand 325 states and 470 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:03,669 INFO L93 Difference]: Finished difference Result 493 states and 716 transitions. [2024-11-16 11:46:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:03,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-16 11:46:03,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:03,671 INFO L225 Difference]: With dead ends: 493 [2024-11-16 11:46:03,671 INFO L226 Difference]: Without dead ends: 335 [2024-11-16 11:46:03,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 11:46:03,672 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 567 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:03,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 956 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-16 11:46:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2024-11-16 11:46:03,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.4484848484848485) internal successors, (478), 330 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:03,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 478 transitions. [2024-11-16 11:46:03,679 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 478 transitions. Word has length 116 [2024-11-16 11:46:03,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:03,679 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 478 transitions. [2024-11-16 11:46:03,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 478 transitions. [2024-11-16 11:46:03,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 11:46:03,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:03,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:03,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 11:46:03,681 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:03,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash -229506514, now seen corresponding path program 1 times [2024-11-16 11:46:03,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:03,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910285947] [2024-11-16 11:46:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:03,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:04,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910285947] [2024-11-16 11:46:04,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910285947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:04,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:04,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:04,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372262185] [2024-11-16 11:46:04,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:04,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:04,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:04,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:04,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:04,172 INFO L87 Difference]: Start difference. First operand 331 states and 478 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:04,371 INFO L93 Difference]: Finished difference Result 514 states and 745 transitions. [2024-11-16 11:46:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-16 11:46:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:04,374 INFO L225 Difference]: With dead ends: 514 [2024-11-16 11:46:04,374 INFO L226 Difference]: Without dead ends: 329 [2024-11-16 11:46:04,374 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 [2024-11-16 11:46:04,375 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 554 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:04,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 672 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-16 11:46:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-16 11:46:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 328 states have (on average 1.4481707317073171) internal successors, (475), 328 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 475 transitions. [2024-11-16 11:46:04,383 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 475 transitions. Word has length 116 [2024-11-16 11:46:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:04,384 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 475 transitions. [2024-11-16 11:46:04,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 475 transitions. [2024-11-16 11:46:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 11:46:04,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:04,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:04,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:46:04,385 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:04,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1518332081, now seen corresponding path program 1 times [2024-11-16 11:46:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:04,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424102146] [2024-11-16 11:46:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:04,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:05,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:05,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424102146] [2024-11-16 11:46:05,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424102146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:05,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:05,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:46:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270873266] [2024-11-16 11:46:05,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:05,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:46:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:46:05,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:46:05,121 INFO L87 Difference]: Start difference. First operand 329 states and 475 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:05,368 INFO L93 Difference]: Finished difference Result 534 states and 773 transitions. [2024-11-16 11:46:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:05,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-16 11:46:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:05,372 INFO L225 Difference]: With dead ends: 534 [2024-11-16 11:46:05,372 INFO L226 Difference]: Without dead ends: 329 [2024-11-16 11:46:05,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:46:05,373 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 564 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:05,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 893 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-16 11:46:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-16 11:46:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 328 states have (on average 1.4451219512195121) internal successors, (474), 328 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 474 transitions. [2024-11-16 11:46:05,381 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 474 transitions. Word has length 116 [2024-11-16 11:46:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:05,381 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 474 transitions. [2024-11-16 11:46:05,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 474 transitions. [2024-11-16 11:46:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 11:46:05,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:05,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:05,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:46:05,383 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:05,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 800179508, now seen corresponding path program 1 times [2024-11-16 11:46:05,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:05,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443305891] [2024-11-16 11:46:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:05,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:06,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:06,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443305891] [2024-11-16 11:46:06,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443305891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:06,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855978814] [2024-11-16 11:46:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:06,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:06,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:06,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:06,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 11:46:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:06,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-16 11:46:06,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:07,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:08,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855978814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:46:08,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:46:08,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2024-11-16 11:46:08,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658026397] [2024-11-16 11:46:08,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:46:08,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 11:46:08,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 11:46:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2024-11-16 11:46:08,660 INFO L87 Difference]: Start difference. First operand 329 states and 474 transitions. Second operand has 28 states, 28 states have (on average 12.035714285714286) internal successors, (337), 28 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:10,029 INFO L93 Difference]: Finished difference Result 878 states and 1268 transitions. [2024-11-16 11:46:10,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 11:46:10,030 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.035714285714286) internal successors, (337), 28 states have internal predecessors, (337), 0 states have call successors, (0), 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 117 [2024-11-16 11:46:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:10,033 INFO L225 Difference]: With dead ends: 878 [2024-11-16 11:46:10,033 INFO L226 Difference]: Without dead ends: 600 [2024-11-16 11:46:10,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2024-11-16 11:46:10,035 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1389 mSDsluCounter, 4949 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 5287 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:10,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 5287 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 11:46:10,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-16 11:46:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 471. [2024-11-16 11:46:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.4340425531914893) internal successors, (674), 470 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 674 transitions. [2024-11-16 11:46:10,046 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 674 transitions. Word has length 117 [2024-11-16 11:46:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:10,046 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 674 transitions. [2024-11-16 11:46:10,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.035714285714286) internal successors, (337), 28 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 674 transitions. [2024-11-16 11:46:10,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 11:46:10,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:10,049 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:10,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 11:46:10,253 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,SelfDestructingSolverStorable13 [2024-11-16 11:46:10,254 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:10,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:10,254 INFO L85 PathProgramCache]: Analyzing trace with hash 989962697, now seen corresponding path program 1 times [2024-11-16 11:46:10,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:10,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248227561] [2024-11-16 11:46:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:10,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:10,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:10,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248227561] [2024-11-16 11:46:10,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248227561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:10,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:10,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:46:10,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685805439] [2024-11-16 11:46:10,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:10,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:46:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:46:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:46:10,576 INFO L87 Difference]: Start difference. First operand 471 states and 674 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:10,728 INFO L93 Difference]: Finished difference Result 750 states and 1076 transitions. [2024-11-16 11:46:10,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:10,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 11:46:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:10,730 INFO L225 Difference]: With dead ends: 750 [2024-11-16 11:46:10,730 INFO L226 Difference]: Without dead ends: 470 [2024-11-16 11:46:10,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:10,733 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 616 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:10,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 680 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:46:10,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-16 11:46:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 468. [2024-11-16 11:46:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.430406852248394) internal successors, (668), 467 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 668 transitions. [2024-11-16 11:46:10,742 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 668 transitions. Word has length 118 [2024-11-16 11:46:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:10,742 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 668 transitions. [2024-11-16 11:46:10,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 668 transitions. [2024-11-16 11:46:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 11:46:10,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:10,744 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:46:10,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:46:10,744 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:10,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash 275034606, now seen corresponding path program 1 times [2024-11-16 11:46:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071083118] [2024-11-16 11:46:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:11,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:11,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071083118] [2024-11-16 11:46:11,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071083118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:11,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:11,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:46:11,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601485567] [2024-11-16 11:46:11,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:11,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:46:11,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:11,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:46:11,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:46:11,037 INFO L87 Difference]: Start difference. First operand 468 states and 668 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:11,257 INFO L93 Difference]: Finished difference Result 626 states and 900 transitions. [2024-11-16 11:46:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:46:11,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 11:46:11,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:11,259 INFO L225 Difference]: With dead ends: 626 [2024-11-16 11:46:11,259 INFO L226 Difference]: Without dead ends: 345 [2024-11-16 11:46:11,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:46:11,260 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 598 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:11,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 898 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:11,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-16 11:46:11,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-16 11:46:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.436046511627907) internal successors, (494), 344 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 494 transitions. [2024-11-16 11:46:11,268 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 494 transitions. Word has length 118 [2024-11-16 11:46:11,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:11,269 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 494 transitions. [2024-11-16 11:46:11,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 494 transitions. [2024-11-16 11:46:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-16 11:46:11,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:11,271 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:46:11,271 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash 883160026, now seen corresponding path program 1 times [2024-11-16 11:46:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894424089] [2024-11-16 11:46:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:11,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 43 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894424089] [2024-11-16 11:46:15,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894424089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172452005] [2024-11-16 11:46:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:15,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:15,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:15,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:15,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 11:46:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:15,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-16 11:46:15,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 43 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:16,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 43 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:18,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172452005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:46:18,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:46:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 14] total 39 [2024-11-16 11:46:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50422504] [2024-11-16 11:46:18,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:46:18,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-16 11:46:18,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:18,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-16 11:46:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 11:46:18,584 INFO L87 Difference]: Start difference. First operand 345 states and 494 transitions. Second operand has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 39 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:24,498 INFO L93 Difference]: Finished difference Result 2768 states and 4023 transitions. [2024-11-16 11:46:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-11-16 11:46:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 39 states have internal predecessors, (534), 0 states have call successors, (0), 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 194 [2024-11-16 11:46:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:24,507 INFO L225 Difference]: With dead ends: 2768 [2024-11-16 11:46:24,508 INFO L226 Difference]: Without dead ends: 2610 [2024-11-16 11:46:24,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 363 SyntacticMatches, 2 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7320 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2927, Invalid=18243, Unknown=0, NotChecked=0, Total=21170 [2024-11-16 11:46:24,514 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 23551 mSDsluCounter, 6694 mSDsCounter, 0 mSdLazyCounter, 3682 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23551 SdHoareTripleChecker+Valid, 6987 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:24,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23551 Valid, 6987 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3682 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 11:46:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2024-11-16 11:46:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 1238. [2024-11-16 11:46:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 1.4308811641067098) internal successors, (1770), 1237 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1770 transitions. [2024-11-16 11:46:24,546 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1770 transitions. Word has length 194 [2024-11-16 11:46:24,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:24,546 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1770 transitions. [2024-11-16 11:46:24,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 13.692307692307692) internal successors, (534), 39 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1770 transitions. [2024-11-16 11:46:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-16 11:46:24,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:24,550 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:24,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 11:46:24,750 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,SelfDestructingSolverStorable16 [2024-11-16 11:46:24,751 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:24,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:24,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1902763325, now seen corresponding path program 1 times [2024-11-16 11:46:24,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:24,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234935100] [2024-11-16 11:46:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:24,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 33 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:28,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234935100] [2024-11-16 11:46:28,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234935100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114652686] [2024-11-16 11:46:28,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:28,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:28,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:28,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:28,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 11:46:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:28,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 11:46:28,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 33 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:29,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 33 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:30,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114652686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:46:30,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:46:30,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 11] total 32 [2024-11-16 11:46:30,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666073776] [2024-11-16 11:46:30,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:46:30,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 11:46:30,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:30,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 11:46:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-11-16 11:46:30,410 INFO L87 Difference]: Start difference. First operand 1238 states and 1770 transitions. Second operand has 32 states, 32 states have (on average 17.09375) internal successors, (547), 32 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:33,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:33,841 INFO L93 Difference]: Finished difference Result 2604 states and 3761 transitions. [2024-11-16 11:46:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-16 11:46:33,842 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 17.09375) internal successors, (547), 32 states have internal predecessors, (547), 0 states have call successors, (0), 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 195 [2024-11-16 11:46:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:33,848 INFO L225 Difference]: With dead ends: 2604 [2024-11-16 11:46:33,849 INFO L226 Difference]: Without dead ends: 2242 [2024-11-16 11:46:33,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1967 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1250, Invalid=6760, Unknown=0, NotChecked=0, Total=8010 [2024-11-16 11:46:33,852 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 12772 mSDsluCounter, 4911 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12772 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:33,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12772 Valid, 5212 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 11:46:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2024-11-16 11:46:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1337. [2024-11-16 11:46:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1336 states have (on average 1.4341317365269461) internal successors, (1916), 1336 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1916 transitions. [2024-11-16 11:46:33,882 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1916 transitions. Word has length 195 [2024-11-16 11:46:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:33,883 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1916 transitions. [2024-11-16 11:46:33,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 17.09375) internal successors, (547), 32 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1916 transitions. [2024-11-16 11:46:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 11:46:33,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:33,886 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:33,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 11:46:34,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 11:46:34,087 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:34,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1449724479, now seen corresponding path program 1 times [2024-11-16 11:46:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:34,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809667335] [2024-11-16 11:46:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 11:46:35,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:35,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809667335] [2024-11-16 11:46:35,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809667335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:35,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:35,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:46:35,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996785416] [2024-11-16 11:46:35,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:35,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:35,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:46:35,724 INFO L87 Difference]: Start difference. First operand 1337 states and 1916 transitions. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 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) [2024-11-16 11:46:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:35,995 INFO L93 Difference]: Finished difference Result 2343 states and 3400 transitions. [2024-11-16 11:46:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 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) Word has length 196 [2024-11-16 11:46:35,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:36,001 INFO L225 Difference]: With dead ends: 2343 [2024-11-16 11:46:36,002 INFO L226 Difference]: Without dead ends: 1962 [2024-11-16 11:46:36,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:46:36,003 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 129 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:36,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1242 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-16 11:46:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1914. [2024-11-16 11:46:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1913 states have (on average 1.446941975953999) internal successors, (2768), 1913 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2768 transitions. [2024-11-16 11:46:36,037 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2768 transitions. Word has length 196 [2024-11-16 11:46:36,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:36,038 INFO L471 AbstractCegarLoop]: Abstraction has 1914 states and 2768 transitions. [2024-11-16 11:46:36,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 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) [2024-11-16 11:46:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2768 transitions. [2024-11-16 11:46:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 11:46:36,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:36,042 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:36,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:46:36,042 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:36,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1687976362, now seen corresponding path program 1 times [2024-11-16 11:46:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824635086] [2024-11-16 11:46:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 74 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:37,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824635086] [2024-11-16 11:46:37,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824635086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310541422] [2024-11-16 11:46:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:37,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:37,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:37,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:37,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 11:46:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:38,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-16 11:46:38,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:38,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:39,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310541422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:46:39,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:46:39,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11] total 25 [2024-11-16 11:46:39,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135354804] [2024-11-16 11:46:39,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:46:39,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 11:46:39,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 11:46:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-16 11:46:39,291 INFO L87 Difference]: Start difference. First operand 1914 states and 2768 transitions. Second operand has 25 states, 25 states have (on average 20.88) internal successors, (522), 25 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:40,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:40,511 INFO L93 Difference]: Finished difference Result 3136 states and 4567 transitions. [2024-11-16 11:46:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 11:46:40,512 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 20.88) internal successors, (522), 25 states have internal predecessors, (522), 0 states have call successors, (0), 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 196 [2024-11-16 11:46:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:40,517 INFO L225 Difference]: With dead ends: 3136 [2024-11-16 11:46:40,517 INFO L226 Difference]: Without dead ends: 1947 [2024-11-16 11:46:40,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=426, Invalid=1830, Unknown=0, NotChecked=0, Total=2256 [2024-11-16 11:46:40,520 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 3987 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:40,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3987 Valid, 3574 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:46:40,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-16 11:46:40,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1766. [2024-11-16 11:46:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1765 states have (on average 1.43342776203966) internal successors, (2530), 1765 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2530 transitions. [2024-11-16 11:46:40,549 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2530 transitions. Word has length 196 [2024-11-16 11:46:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:40,550 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2530 transitions. [2024-11-16 11:46:40,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 20.88) internal successors, (522), 25 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2530 transitions. [2024-11-16 11:46:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-16 11:46:40,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:40,554 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:40,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 11:46:40,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:40,756 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:40,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1423784478, now seen corresponding path program 1 times [2024-11-16 11:46:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:40,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117848528] [2024-11-16 11:46:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:40,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 23 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:43,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117848528] [2024-11-16 11:46:43,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117848528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215857709] [2024-11-16 11:46:43,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:43,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:43,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:43,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:43,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 11:46:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:43,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-16 11:46:43,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-16 11:46:43,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:46:43,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215857709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:43,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 11:46:43,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-16 11:46:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359345424] [2024-11-16 11:46:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:43,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:43,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-16 11:46:43,830 INFO L87 Difference]: Start difference. First operand 1766 states and 2530 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:44,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:44,028 INFO L93 Difference]: Finished difference Result 3177 states and 4586 transitions. [2024-11-16 11:46:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:46:44,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 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 197 [2024-11-16 11:46:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:44,039 INFO L225 Difference]: With dead ends: 3177 [2024-11-16 11:46:44,039 INFO L226 Difference]: Without dead ends: 2546 [2024-11-16 11:46:44,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-16 11:46:44,043 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 149 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:44,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1003 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-16 11:46:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2186. [2024-11-16 11:46:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 1.4379862700228834) internal successors, (3142), 2185 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3142 transitions. [2024-11-16 11:46:44,088 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3142 transitions. Word has length 197 [2024-11-16 11:46:44,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:44,088 INFO L471 AbstractCegarLoop]: Abstraction has 2186 states and 3142 transitions. [2024-11-16 11:46:44,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3142 transitions. [2024-11-16 11:46:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 11:46:44,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:44,093 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:44,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 11:46:44,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:44,294 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:44,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1925518515, now seen corresponding path program 1 times [2024-11-16 11:46:44,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789109766] [2024-11-16 11:46:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:45,822 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 21 proven. 64 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 11:46:45,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789109766] [2024-11-16 11:46:45,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789109766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:45,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272513322] [2024-11-16 11:46:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:45,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:45,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:45,824 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:45,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 11:46:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:46,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-16 11:46:46,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 21 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:47,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-16 11:46:47,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272513322] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:47,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 11:46:47,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11, 22] total 43 [2024-11-16 11:46:47,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983725756] [2024-11-16 11:46:47,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:47,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 11:46:47,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:47,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 11:46:47,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1544, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 11:46:47,860 INFO L87 Difference]: Start difference. First operand 2186 states and 3142 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 14 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:48,544 INFO L93 Difference]: Finished difference Result 4395 states and 6378 transitions. [2024-11-16 11:46:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 11:46:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 14 states have internal predecessors, (156), 0 states have call successors, (0), 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 198 [2024-11-16 11:46:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:48,550 INFO L225 Difference]: With dead ends: 4395 [2024-11-16 11:46:48,550 INFO L226 Difference]: Without dead ends: 2600 [2024-11-16 11:46:48,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=316, Invalid=1754, Unknown=0, NotChecked=0, Total=2070 [2024-11-16 11:46:48,553 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1143 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:48,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2064 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:46:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2024-11-16 11:46:48,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2536. [2024-11-16 11:46:48,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 2535 states have (on average 1.4406311637080869) internal successors, (3652), 2535 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3652 transitions. [2024-11-16 11:46:48,616 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3652 transitions. Word has length 198 [2024-11-16 11:46:48,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:48,617 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 3652 transitions. [2024-11-16 11:46:48,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 14 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3652 transitions. [2024-11-16 11:46:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 11:46:48,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:48,626 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:48,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 11:46:48,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:48,827 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:48,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:48,828 INFO L85 PathProgramCache]: Analyzing trace with hash -456581124, now seen corresponding path program 1 times [2024-11-16 11:46:48,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:48,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264605513] [2024-11-16 11:46:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:48,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 55 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:49,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:49,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264605513] [2024-11-16 11:46:49,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264605513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:49,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942757387] [2024-11-16 11:46:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:49,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:49,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:49,871 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:49,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 11:46:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:50,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-16 11:46:50,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 53 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:51,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 11:46:51,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942757387] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:51,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 11:46:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 17] total 33 [2024-11-16 11:46:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527535410] [2024-11-16 11:46:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:51,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 11:46:51,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 11:46:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=936, Unknown=0, NotChecked=0, Total=1056 [2024-11-16 11:46:51,491 INFO L87 Difference]: Start difference. First operand 2536 states and 3652 transitions. Second operand has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:52,092 INFO L93 Difference]: Finished difference Result 7369 states and 10652 transitions. [2024-11-16 11:46:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 11:46:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 0 states have call successors, (0), 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 198 [2024-11-16 11:46:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:52,100 INFO L225 Difference]: With dead ends: 7369 [2024-11-16 11:46:52,100 INFO L226 Difference]: Without dead ends: 3281 [2024-11-16 11:46:52,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 11:46:52,105 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 998 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:52,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1889 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:46:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2024-11-16 11:46:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3139. [2024-11-16 11:46:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3139 states, 3138 states have (on average 1.438495857233907) internal successors, (4514), 3138 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3139 states to 3139 states and 4514 transitions. [2024-11-16 11:46:52,147 INFO L78 Accepts]: Start accepts. Automaton has 3139 states and 4514 transitions. Word has length 198 [2024-11-16 11:46:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:52,148 INFO L471 AbstractCegarLoop]: Abstraction has 3139 states and 4514 transitions. [2024-11-16 11:46:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3139 states and 4514 transitions. [2024-11-16 11:46:52,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 11:46:52,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:52,154 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:52,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 11:46:52,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:52,355 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:52,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:52,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1026397435, now seen corresponding path program 1 times [2024-11-16 11:46:52,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:52,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3001035] [2024-11-16 11:46:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:52,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 55 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:53,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:53,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3001035] [2024-11-16 11:46:53,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3001035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:53,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453427163] [2024-11-16 11:46:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:53,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:53,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:53,387 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:53,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 11:46:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:53,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-16 11:46:53,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 70 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:54,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:46:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 11:46:54,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453427163] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:54,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 11:46:54,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 13] total 26 [2024-11-16 11:46:54,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386276614] [2024-11-16 11:46:54,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:54,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:46:54,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:54,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:46:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-11-16 11:46:54,709 INFO L87 Difference]: Start difference. First operand 3139 states and 4514 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:54,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:54,987 INFO L93 Difference]: Finished difference Result 9491 states and 13708 transitions. [2024-11-16 11:46:54,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:54,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 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 198 [2024-11-16 11:46:54,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:54,998 INFO L225 Difference]: With dead ends: 9491 [2024-11-16 11:46:54,999 INFO L226 Difference]: Without dead ends: 4238 [2024-11-16 11:46:55,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2024-11-16 11:46:55,005 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 498 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:55,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1150 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:55,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2024-11-16 11:46:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3499. [2024-11-16 11:46:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3498 states have (on average 1.4391080617495713) internal successors, (5034), 3498 states have internal predecessors, (5034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 5034 transitions. [2024-11-16 11:46:55,055 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 5034 transitions. Word has length 198 [2024-11-16 11:46:55,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:55,055 INFO L471 AbstractCegarLoop]: Abstraction has 3499 states and 5034 transitions. [2024-11-16 11:46:55,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 5034 transitions. [2024-11-16 11:46:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 11:46:55,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:55,061 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:55,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 11:46:55,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-16 11:46:55,262 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:55,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:55,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1334289150, now seen corresponding path program 1 times [2024-11-16 11:46:55,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:55,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359514384] [2024-11-16 11:46:55,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:55,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-16 11:46:55,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:55,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359514384] [2024-11-16 11:46:55,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359514384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:46:55,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:46:55,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 11:46:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144352768] [2024-11-16 11:46:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:46:55,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 11:46:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:46:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 11:46:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:46:55,986 INFO L87 Difference]: Start difference. First operand 3499 states and 5034 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:46:56,212 INFO L93 Difference]: Finished difference Result 10160 states and 14660 transitions. [2024-11-16 11:46:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:46:56,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 198 [2024-11-16 11:46:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:46:56,223 INFO L225 Difference]: With dead ends: 10160 [2024-11-16 11:46:56,223 INFO L226 Difference]: Without dead ends: 7877 [2024-11-16 11:46:56,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:46:56,227 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 656 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:46:56,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1612 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:46:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7877 states. [2024-11-16 11:46:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7877 to 3531. [2024-11-16 11:46:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 3530 states have (on average 1.4359773371104816) internal successors, (5069), 3530 states have internal predecessors, (5069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 5069 transitions. [2024-11-16 11:46:56,291 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 5069 transitions. Word has length 198 [2024-11-16 11:46:56,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:46:56,291 INFO L471 AbstractCegarLoop]: Abstraction has 3531 states and 5069 transitions. [2024-11-16 11:46:56,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:46:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 5069 transitions. [2024-11-16 11:46:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 11:46:56,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:46:56,297 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 11:46:56,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 11:46:56,298 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:46:56,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:46:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1488579727, now seen corresponding path program 1 times [2024-11-16 11:46:56,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:46:56,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763104885] [2024-11-16 11:46:56,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:56,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:46:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 71 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:57,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:46:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763104885] [2024-11-16 11:46:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763104885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 11:46:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228462082] [2024-11-16 11:46:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:46:57,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 11:46:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:46:57,512 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 11:46:57,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 11:46:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:46:58,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-16 11:46:58,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:46:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 71 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:46:58,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 11:47:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:47:00,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228462082] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 11:47:00,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 11:47:00,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 16] total 36 [2024-11-16 11:47:00,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258100039] [2024-11-16 11:47:00,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 11:47:00,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-16 11:47:00,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:47:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-16 11:47:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 11:47:00,258 INFO L87 Difference]: Start difference. First operand 3531 states and 5069 transitions. Second operand has 36 states, 36 states have (on average 14.416666666666666) internal successors, (519), 36 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)