./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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.vcegar_QF_BV_itc99_b13_p01.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 10c341169e851beaa907d6b4c856b8c9335bdf02c819f534595f4ceb4010e354 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:58:17,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:58:17,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 02:58:17,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:58:17,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:58:17,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:58:17,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:58:17,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:58:17,641 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:58:17,642 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:58:17,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:58:17,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:58:17,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:58:17,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:58:17,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:58:17,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:58:17,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:58:17,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 02:58:17,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:58:17,646 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:58:17,646 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:58:17,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:58:17,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:58:17,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:58:17,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:58:17,649 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:58:17,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:58:17,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:58:17,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:58:17,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:58:17,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:58:17,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:58:17,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:58:17,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:58:17,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10c341169e851beaa907d6b4c856b8c9335bdf02c819f534595f4ceb4010e354 [2024-11-10 02:58:17,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:58:17,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:58:17,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:58:17,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:58:17,882 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:58:17,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2024-11-10 02:58:19,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:58:19,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:58:19,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2024-11-10 02:58:19,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8fb8fca/af699023aee644108e4929576267b17b/FLAGbb6e3f18f [2024-11-10 02:58:19,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8fb8fca/af699023aee644108e4929576267b17b [2024-11-10 02:58:19,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:58:19,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:58:19,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:58:19,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:58:19,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:58:19,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29aeb7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19, skipping insertion in model container [2024-11-10 02:58:19,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:58:19,570 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.vcegar_QF_BV_itc99_b13_p01.c[1266,1279] [2024-11-10 02:58:19,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:58:19,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:58:19,686 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.vcegar_QF_BV_itc99_b13_p01.c[1266,1279] [2024-11-10 02:58:19,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:58:19,765 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:58:19,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19 WrapperNode [2024-11-10 02:58:19,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:58:19,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:58:19,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:58:19,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:58:19,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,847 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 747 [2024-11-10 02:58:19,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:58:19,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:58:19,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:58:19,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:58:19,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,919 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]. [2024-11-10 02:58:19,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,941 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:58:19,975 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:58:19,975 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:58:19,976 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:58:19,976 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (1/1) ... [2024-11-10 02:58:19,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:58:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:20,009 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) [2024-11-10 02:58:20,011 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 [2024-11-10 02:58:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:58:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 02:58:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:58:20,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:58:20,193 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:58:20,194 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:58:20,920 INFO L? ?]: Removed 395 outVars from TransFormulas that were not future-live. [2024-11-10 02:58:20,920 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:58:20,960 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:58:20,961 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:58:20,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:58:20 BoogieIcfgContainer [2024-11-10 02:58:20,962 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:58:20,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:58:20,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:58:20,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:58:20,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:58:19" (1/3) ... [2024-11-10 02:58:20,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:58:20, skipping insertion in model container [2024-11-10 02:58:20,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:19" (2/3) ... [2024-11-10 02:58:20,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:58:20, skipping insertion in model container [2024-11-10 02:58:20,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:58:20" (3/3) ... [2024-11-10 02:58:20,970 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p01.c [2024-11-10 02:58:20,983 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:58:20,983 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:58:21,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:58:21,083 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;@347dd3f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:58:21,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:58:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.4825174825174825) internal successors, (212), 144 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:21,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 02:58:21,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:21,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:21,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:21,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash 320515346, now seen corresponding path program 1 times [2024-11-10 02:58:21,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:21,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162934609] [2024-11-10 02:58:21,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:21,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:21,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:21,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162934609] [2024-11-10 02:58:21,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162934609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:21,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:21,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:58:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979060676] [2024-11-10 02:58:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:21,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:58:21,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:21,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:58:21,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:58:21,738 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.4825174825174825) internal successors, (212), 144 states have internal predecessors, (212), 0 states have call successors, (0), 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 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:21,876 INFO L93 Difference]: Finished difference Result 233 states and 343 transitions. [2024-11-10 02:58:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:58:21,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-10 02:58:21,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:21,884 INFO L225 Difference]: With dead ends: 233 [2024-11-10 02:58:21,885 INFO L226 Difference]: Without dead ends: 142 [2024-11-10 02:58:21,888 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 [2024-11-10 02:58:21,891 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:21,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:58:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-10 02:58:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-10 02:58:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.475177304964539) internal successors, (208), 141 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 208 transitions. [2024-11-10 02:58:21,925 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 208 transitions. Word has length 42 [2024-11-10 02:58:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:21,926 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 208 transitions. [2024-11-10 02:58:21,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 208 transitions. [2024-11-10 02:58:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-10 02:58:21,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:21,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:21,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 02:58:21,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:21,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1491094616, now seen corresponding path program 1 times [2024-11-10 02:58:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:21,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518713914] [2024-11-10 02:58:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:21,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:22,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:22,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518713914] [2024-11-10 02:58:22,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518713914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:22,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:22,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:58:22,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772914588] [2024-11-10 02:58:22,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:22,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:58:22,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:58:22,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:58:22,125 INFO L87 Difference]: Start difference. First operand 142 states and 208 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:22,231 INFO L93 Difference]: Finished difference Result 232 states and 339 transitions. [2024-11-10 02:58:22,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:58:22,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-10 02:58:22,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:22,233 INFO L225 Difference]: With dead ends: 232 [2024-11-10 02:58:22,235 INFO L226 Difference]: Without dead ends: 144 [2024-11-10 02:58:22,236 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 [2024-11-10 02:58:22,237 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:22,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:58:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-10 02:58:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-10 02:58:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4685314685314685) internal successors, (210), 143 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2024-11-10 02:58:22,249 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 210 transitions. Word has length 43 [2024-11-10 02:58:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:22,250 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 210 transitions. [2024-11-10 02:58:22,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,252 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 210 transitions. [2024-11-10 02:58:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 02:58:22,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:22,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:22,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 02:58:22,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:22,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:22,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1273463497, now seen corresponding path program 1 times [2024-11-10 02:58:22,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:22,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667542733] [2024-11-10 02:58:22,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:22,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:22,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:22,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667542733] [2024-11-10 02:58:22,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667542733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:22,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:22,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:58:22,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127711664] [2024-11-10 02:58:22,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:22,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:58:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:22,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:58:22,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:58:22,586 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:22,710 INFO L93 Difference]: Finished difference Result 234 states and 340 transitions. [2024-11-10 02:58:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:58:22,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-10 02:58:22,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:22,712 INFO L225 Difference]: With dead ends: 234 [2024-11-10 02:58:22,712 INFO L226 Difference]: Without dead ends: 144 [2024-11-10 02:58:22,713 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 [2024-11-10 02:58:22,713 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 6 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:22,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 495 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:58:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-10 02:58:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-10 02:58:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4615384615384615) internal successors, (209), 143 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 209 transitions. [2024-11-10 02:58:22,729 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 209 transitions. Word has length 44 [2024-11-10 02:58:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:22,729 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 209 transitions. [2024-11-10 02:58:22,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 209 transitions. [2024-11-10 02:58:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-10 02:58:22,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:22,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:22,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 02:58:22,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:22,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1882000051, now seen corresponding path program 1 times [2024-11-10 02:58:22,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:22,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561408401] [2024-11-10 02:58:22,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:22,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:23,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561408401] [2024-11-10 02:58:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561408401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:23,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:23,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 02:58:23,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747797674] [2024-11-10 02:58:23,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:23,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 02:58:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:23,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 02:58:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 02:58:23,105 INFO L87 Difference]: Start difference. First operand 144 states and 209 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:23,294 INFO L93 Difference]: Finished difference Result 244 states and 352 transitions. [2024-11-10 02:58:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 02:58:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-10 02:58:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:23,296 INFO L225 Difference]: With dead ends: 244 [2024-11-10 02:58:23,296 INFO L226 Difference]: Without dead ends: 154 [2024-11-10 02:58:23,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-10 02:58:23,297 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 193 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:23,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 977 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:58:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-10 02:58:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2024-11-10 02:58:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 152 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 221 transitions. [2024-11-10 02:58:23,306 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 221 transitions. Word has length 45 [2024-11-10 02:58:23,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:23,306 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 221 transitions. [2024-11-10 02:58:23,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 221 transitions. [2024-11-10 02:58:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-10 02:58:23,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:23,307 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:23,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 02:58:23,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:23,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2094014794, now seen corresponding path program 1 times [2024-11-10 02:58:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58055177] [2024-11-10 02:58:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:23,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:23,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58055177] [2024-11-10 02:58:23,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58055177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:23,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:23,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:58:23,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066633252] [2024-11-10 02:58:23,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:23,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:58:23,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:23,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:58:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:58:23,573 INFO L87 Difference]: Start difference. First operand 153 states and 221 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:23,670 INFO L93 Difference]: Finished difference Result 258 states and 370 transitions. [2024-11-10 02:58:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:58:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-10 02:58:23,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:23,671 INFO L225 Difference]: With dead ends: 258 [2024-11-10 02:58:23,671 INFO L226 Difference]: Without dead ends: 159 [2024-11-10 02:58:23,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:58:23,672 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 176 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:23,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 495 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:58:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-10 02:58:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-11-10 02:58:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 158 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 227 transitions. [2024-11-10 02:58:23,685 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 227 transitions. Word has length 46 [2024-11-10 02:58:23,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:23,685 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 227 transitions. [2024-11-10 02:58:23,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:23,685 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 227 transitions. [2024-11-10 02:58:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-10 02:58:23,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:23,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:23,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 02:58:23,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:23,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1894966977, now seen corresponding path program 1 times [2024-11-10 02:58:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:23,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943735003] [2024-11-10 02:58:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:23,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:23,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943735003] [2024-11-10 02:58:23,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943735003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:23,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:23,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:58:23,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2200035] [2024-11-10 02:58:23,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:23,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:58:23,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:58:23,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:58:23,849 INFO L87 Difference]: Start difference. First operand 159 states and 227 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:24,085 INFO L93 Difference]: Finished difference Result 309 states and 433 transitions. [2024-11-10 02:58:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:58:24,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-10 02:58:24,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:24,087 INFO L225 Difference]: With dead ends: 309 [2024-11-10 02:58:24,088 INFO L226 Difference]: Without dead ends: 204 [2024-11-10 02:58:24,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 02:58:24,092 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 275 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:24,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 534 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:58:24,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-10 02:58:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 161. [2024-11-10 02:58:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.43125) internal successors, (229), 160 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 229 transitions. [2024-11-10 02:58:24,102 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 229 transitions. Word has length 46 [2024-11-10 02:58:24,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:24,102 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 229 transitions. [2024-11-10 02:58:24,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,103 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 229 transitions. [2024-11-10 02:58:24,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-10 02:58:24,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:24,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:24,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 02:58:24,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:24,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1797116735, now seen corresponding path program 1 times [2024-11-10 02:58:24,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:24,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218740863] [2024-11-10 02:58:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218740863] [2024-11-10 02:58:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218740863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:24,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:24,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:58:24,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864716983] [2024-11-10 02:58:24,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:24,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:58:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:58:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:58:24,282 INFO L87 Difference]: Start difference. First operand 161 states and 229 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:24,515 INFO L93 Difference]: Finished difference Result 278 states and 389 transitions. [2024-11-10 02:58:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:58:24,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-10 02:58:24,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:24,517 INFO L225 Difference]: With dead ends: 278 [2024-11-10 02:58:24,518 INFO L226 Difference]: Without dead ends: 173 [2024-11-10 02:58:24,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 02:58:24,519 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 203 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:24,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 530 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:58:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-10 02:58:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2024-11-10 02:58:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 231 transitions. [2024-11-10 02:58:24,526 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 231 transitions. Word has length 47 [2024-11-10 02:58:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:24,526 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 231 transitions. [2024-11-10 02:58:24,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 231 transitions. [2024-11-10 02:58:24,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-10 02:58:24,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:24,527 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:24,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 02:58:24,528 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:24,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 988842331, now seen corresponding path program 1 times [2024-11-10 02:58:24,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:24,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099359803] [2024-11-10 02:58:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:24,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:25,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:25,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099359803] [2024-11-10 02:58:25,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099359803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:25,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509230235] [2024-11-10 02:58:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:25,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:25,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:25,464 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) [2024-11-10 02:58:25,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 02:58:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:25,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 02:58:25,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:26,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:58:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509230235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:26,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:58:26,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2024-11-10 02:58:26,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093331590] [2024-11-10 02:58:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:26,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 02:58:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:26,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 02:58:26,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-10 02:58:26,125 INFO L87 Difference]: Start difference. First operand 163 states and 231 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:26,753 INFO L93 Difference]: Finished difference Result 370 states and 518 transitions. [2024-11-10 02:58:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 02:58:26,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-10 02:58:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:26,756 INFO L225 Difference]: With dead ends: 370 [2024-11-10 02:58:26,757 INFO L226 Difference]: Without dead ends: 265 [2024-11-10 02:58:26,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-10 02:58:26,758 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 113 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:26,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 795 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 02:58:26,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-10 02:58:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 220. [2024-11-10 02:58:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.4383561643835616) internal successors, (315), 219 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 315 transitions. [2024-11-10 02:58:26,766 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 315 transitions. Word has length 90 [2024-11-10 02:58:26,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:26,767 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 315 transitions. [2024-11-10 02:58:26,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:26,768 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 315 transitions. [2024-11-10 02:58:26,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 02:58:26,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:26,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:26,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 02:58:26,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:26,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:26,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash 177790311, now seen corresponding path program 1 times [2024-11-10 02:58:26,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:26,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316337073] [2024-11-10 02:58:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:27,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:27,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316337073] [2024-11-10 02:58:27,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316337073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:27,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900909422] [2024-11-10 02:58:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:27,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:27,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:27,663 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) [2024-11-10 02:58:27,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 02:58:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:28,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 02:58:28,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:28,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:58:28,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900909422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:28,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:58:28,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-10 02:58:28,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377677687] [2024-11-10 02:58:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:28,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:58:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:58:28,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:58:28,250 INFO L87 Difference]: Start difference. First operand 220 states and 315 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:28,591 INFO L93 Difference]: Finished difference Result 461 states and 660 transitions. [2024-11-10 02:58:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:58:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-10 02:58:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:28,593 INFO L225 Difference]: With dead ends: 461 [2024-11-10 02:58:28,593 INFO L226 Difference]: Without dead ends: 299 [2024-11-10 02:58:28,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-10 02:58:28,594 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 301 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:28,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 147 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:58:28,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-10 02:58:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 249. [2024-11-10 02:58:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.4153225806451613) internal successors, (351), 248 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 351 transitions. [2024-11-10 02:58:28,603 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 351 transitions. Word has length 91 [2024-11-10 02:58:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:28,605 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 351 transitions. [2024-11-10 02:58:28,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:28,605 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 351 transitions. [2024-11-10 02:58:28,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 02:58:28,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:28,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:28,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 02:58:28,808 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,SelfDestructingSolverStorable8 [2024-11-10 02:58:28,809 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:28,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1726097628, now seen corresponding path program 1 times [2024-11-10 02:58:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:28,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880121853] [2024-11-10 02:58:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880121853] [2024-11-10 02:58:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880121853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:29,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:29,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:58:29,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696904360] [2024-11-10 02:58:29,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:29,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:58:29,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:29,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:58:29,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:58:29,505 INFO L87 Difference]: Start difference. First operand 249 states and 351 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:29,866 INFO L93 Difference]: Finished difference Result 505 states and 720 transitions. [2024-11-10 02:58:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:58:29,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-10 02:58:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:29,868 INFO L225 Difference]: With dead ends: 505 [2024-11-10 02:58:29,869 INFO L226 Difference]: Without dead ends: 343 [2024-11-10 02:58:29,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-10 02:58:29,869 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 345 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:29,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 387 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:58:29,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-10 02:58:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 285. [2024-11-10 02:58:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.4190140845070423) internal successors, (403), 284 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 403 transitions. [2024-11-10 02:58:29,876 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 403 transitions. Word has length 92 [2024-11-10 02:58:29,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:29,877 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 403 transitions. [2024-11-10 02:58:29,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:29,877 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 403 transitions. [2024-11-10 02:58:29,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 02:58:29,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:29,878 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:29,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 02:58:29,878 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2049935648, now seen corresponding path program 1 times [2024-11-10 02:58:29,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611522253] [2024-11-10 02:58:29,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:29,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:30,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611522253] [2024-11-10 02:58:30,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611522253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:30,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:30,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 02:58:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720459201] [2024-11-10 02:58:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:30,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 02:58:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 02:58:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 02:58:30,632 INFO L87 Difference]: Start difference. First operand 285 states and 403 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:31,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:31,215 INFO L93 Difference]: Finished difference Result 484 states and 682 transitions. [2024-11-10 02:58:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 02:58:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-10 02:58:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:31,217 INFO L225 Difference]: With dead ends: 484 [2024-11-10 02:58:31,217 INFO L226 Difference]: Without dead ends: 322 [2024-11-10 02:58:31,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-10 02:58:31,218 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 299 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:31,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 476 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 02:58:31,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-10 02:58:31,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 289. [2024-11-10 02:58:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.4131944444444444) internal successors, (407), 288 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 407 transitions. [2024-11-10 02:58:31,223 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 407 transitions. Word has length 93 [2024-11-10 02:58:31,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:31,224 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 407 transitions. [2024-11-10 02:58:31,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 407 transitions. [2024-11-10 02:58:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 02:58:31,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:31,225 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:31,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 02:58:31,225 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:31,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:31,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1836485622, now seen corresponding path program 1 times [2024-11-10 02:58:31,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:31,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199486498] [2024-11-10 02:58:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:31,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:32,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:32,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199486498] [2024-11-10 02:58:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199486498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:32,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730025296] [2024-11-10 02:58:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:32,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:32,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:32,170 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) [2024-11-10 02:58:32,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 02:58:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:32,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-10 02:58:32,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:32,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:58:32,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730025296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:32,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:58:32,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-10 02:58:32,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924490037] [2024-11-10 02:58:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:32,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:58:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:32,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:58:32,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-10 02:58:32,729 INFO L87 Difference]: Start difference. First operand 289 states and 407 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:33,027 INFO L93 Difference]: Finished difference Result 507 states and 715 transitions. [2024-11-10 02:58:33,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:58:33,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-10 02:58:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:33,028 INFO L225 Difference]: With dead ends: 507 [2024-11-10 02:58:33,028 INFO L226 Difference]: Without dead ends: 289 [2024-11-10 02:58:33,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-10 02:58:33,029 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 197 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:33,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 147 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:58:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-10 02:58:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-11-10 02:58:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.40625) internal successors, (405), 288 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 405 transitions. [2024-11-10 02:58:33,034 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 405 transitions. Word has length 93 [2024-11-10 02:58:33,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:33,034 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 405 transitions. [2024-11-10 02:58:33,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:33,034 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 405 transitions. [2024-11-10 02:58:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-10 02:58:33,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:33,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:33,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 02:58:33,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:33,236 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:33,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:33,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1878128267, now seen corresponding path program 1 times [2024-11-10 02:58:33,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:33,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581329559] [2024-11-10 02:58:33,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:33,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:34,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:34,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581329559] [2024-11-10 02:58:34,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581329559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:34,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753612078] [2024-11-10 02:58:34,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:34,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:34,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:34,149 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) [2024-11-10 02:58:34,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 02:58:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:34,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-10 02:58:34,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:35,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:58:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:35,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753612078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:58:35,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:58:35,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 11] total 26 [2024-11-10 02:58:35,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930293776] [2024-11-10 02:58:35,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:58:35,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 02:58:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:35,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 02:58:35,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-11-10 02:58:35,550 INFO L87 Difference]: Start difference. First operand 289 states and 405 transitions. Second operand has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:37,472 INFO L93 Difference]: Finished difference Result 733 states and 1028 transitions. [2024-11-10 02:58:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-10 02:58:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 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 95 [2024-11-10 02:58:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:37,474 INFO L225 Difference]: With dead ends: 733 [2024-11-10 02:58:37,474 INFO L226 Difference]: Without dead ends: 567 [2024-11-10 02:58:37,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=468, Invalid=2612, Unknown=0, NotChecked=0, Total=3080 [2024-11-10 02:58:37,476 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 1608 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:37,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 793 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 02:58:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-10 02:58:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 406. [2024-11-10 02:58:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4222222222222223) internal successors, (576), 405 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 576 transitions. [2024-11-10 02:58:37,485 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 576 transitions. Word has length 95 [2024-11-10 02:58:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:37,485 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 576 transitions. [2024-11-10 02:58:37,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 576 transitions. [2024-11-10 02:58:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 02:58:37,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:37,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:37,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 02:58:37,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:37,689 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:37,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:37,689 INFO L85 PathProgramCache]: Analyzing trace with hash 468381518, now seen corresponding path program 1 times [2024-11-10 02:58:37,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:37,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928740657] [2024-11-10 02:58:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:38,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:38,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928740657] [2024-11-10 02:58:38,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928740657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:38,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:38,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 02:58:38,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577146444] [2024-11-10 02:58:38,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:38,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 02:58:38,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:38,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 02:58:38,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 02:58:38,473 INFO L87 Difference]: Start difference. First operand 406 states and 576 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:38,898 INFO L93 Difference]: Finished difference Result 681 states and 968 transitions. [2024-11-10 02:58:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 02:58:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-10 02:58:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:38,899 INFO L225 Difference]: With dead ends: 681 [2024-11-10 02:58:38,899 INFO L226 Difference]: Without dead ends: 407 [2024-11-10 02:58:38,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-10 02:58:38,900 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 266 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:38,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 500 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:58:38,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-10 02:58:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2024-11-10 02:58:38,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4197530864197532) internal successors, (575), 405 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 575 transitions. [2024-11-10 02:58:38,906 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 575 transitions. Word has length 96 [2024-11-10 02:58:38,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:38,906 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 575 transitions. [2024-11-10 02:58:38,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 575 transitions. [2024-11-10 02:58:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-10 02:58:38,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:38,907 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:58:38,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 02:58:38,908 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:38,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash -248886134, now seen corresponding path program 1 times [2024-11-10 02:58:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296840121] [2024-11-10 02:58:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:40,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296840121] [2024-11-10 02:58:40,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296840121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873680885] [2024-11-10 02:58:40,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:40,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:40,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:40,030 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) [2024-11-10 02:58:40,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 02:58:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:40,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-10 02:58:40,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:40,886 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:40,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:58:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:41,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873680885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:58:41,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:58:41,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 16] total 32 [2024-11-10 02:58:41,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329192418] [2024-11-10 02:58:41,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:58:41,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-10 02:58:41,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-10 02:58:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992 [2024-11-10 02:58:41,840 INFO L87 Difference]: Start difference. First operand 406 states and 575 transitions. Second operand has 32 states, 32 states have (on average 8.46875) internal successors, (271), 32 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:43,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:43,230 INFO L93 Difference]: Finished difference Result 644 states and 910 transitions. [2024-11-10 02:58:43,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 02:58:43,231 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.46875) internal successors, (271), 32 states have internal predecessors, (271), 0 states have call successors, (0), 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 97 [2024-11-10 02:58:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:43,232 INFO L225 Difference]: With dead ends: 644 [2024-11-10 02:58:43,232 INFO L226 Difference]: Without dead ends: 368 [2024-11-10 02:58:43,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=302, Invalid=2050, Unknown=0, NotChecked=0, Total=2352 [2024-11-10 02:58:43,233 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 370 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:43,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 861 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 02:58:43,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-10 02:58:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 358. [2024-11-10 02:58:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.4145658263305323) internal successors, (505), 357 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 505 transitions. [2024-11-10 02:58:43,242 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 505 transitions. Word has length 97 [2024-11-10 02:58:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:43,242 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 505 transitions. [2024-11-10 02:58:43,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.46875) internal successors, (271), 32 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:43,242 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 505 transitions. [2024-11-10 02:58:43,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 02:58:43,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:43,243 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:58:43,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 02:58:43,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 02:58:43,448 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:43,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:43,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1152872403, now seen corresponding path program 1 times [2024-11-10 02:58:43,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:43,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033857614] [2024-11-10 02:58:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:44,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:44,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033857614] [2024-11-10 02:58:44,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033857614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:44,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:58:44,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 02:58:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125633711] [2024-11-10 02:58:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:44,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 02:58:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 02:58:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:58:44,687 INFO L87 Difference]: Start difference. First operand 358 states and 505 transitions. Second operand has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:45,211 INFO L93 Difference]: Finished difference Result 1040 states and 1487 transitions. [2024-11-10 02:58:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 02:58:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-10 02:58:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:45,213 INFO L225 Difference]: With dead ends: 1040 [2024-11-10 02:58:45,213 INFO L226 Difference]: Without dead ends: 816 [2024-11-10 02:58:45,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-10 02:58:45,215 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 310 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:45,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 483 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 02:58:45,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-10 02:58:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 594. [2024-11-10 02:58:45,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 1.4165261382799326) internal successors, (840), 593 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 840 transitions. [2024-11-10 02:58:45,224 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 840 transitions. Word has length 142 [2024-11-10 02:58:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:45,224 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 840 transitions. [2024-11-10 02:58:45,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 840 transitions. [2024-11-10 02:58:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 02:58:45,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:45,226 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:58:45,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 02:58:45,226 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:45,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2012386838, now seen corresponding path program 1 times [2024-11-10 02:58:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205750789] [2024-11-10 02:58:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:45,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:46,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205750789] [2024-11-10 02:58:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205750789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388751851] [2024-11-10 02:58:46,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:46,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:46,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:46,628 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) [2024-11-10 02:58:46,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 02:58:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:47,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-10 02:58:47,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:47,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:58:47,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388751851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:47,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:58:47,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2024-11-10 02:58:47,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866300106] [2024-11-10 02:58:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:47,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 02:58:47,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:47,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 02:58:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-10 02:58:47,463 INFO L87 Difference]: Start difference. First operand 594 states and 840 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:48,051 INFO L93 Difference]: Finished difference Result 1791 states and 2550 transitions. [2024-11-10 02:58:48,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 02:58:48,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-10 02:58:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:48,055 INFO L225 Difference]: With dead ends: 1791 [2024-11-10 02:58:48,055 INFO L226 Difference]: Without dead ends: 1358 [2024-11-10 02:58:48,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-10 02:58:48,056 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 349 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:48,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 468 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 02:58:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-10 02:58:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 746. [2024-11-10 02:58:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.410738255033557) internal successors, (1051), 745 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1051 transitions. [2024-11-10 02:58:48,071 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1051 transitions. Word has length 143 [2024-11-10 02:58:48,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:48,071 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1051 transitions. [2024-11-10 02:58:48,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 9 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1051 transitions. [2024-11-10 02:58:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 02:58:48,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:48,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:58:48,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 02:58:48,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-10 02:58:48,274 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:48,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:48,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1789692001, now seen corresponding path program 1 times [2024-11-10 02:58:48,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:48,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825785224] [2024-11-10 02:58:48,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:48,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:49,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:49,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825785224] [2024-11-10 02:58:49,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825785224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:49,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655669874] [2024-11-10 02:58:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:49,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:49,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:49,909 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) [2024-11-10 02:58:49,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 02:58:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:50,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-10 02:58:50,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-10 02:58:50,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:58:50,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655669874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:58:50,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:58:50,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-10 02:58:50,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298837873] [2024-11-10 02:58:50,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:58:50,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:58:50,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:50,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:58:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-11-10 02:58:50,773 INFO L87 Difference]: Start difference. First operand 746 states and 1051 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:51,137 INFO L93 Difference]: Finished difference Result 1350 states and 1905 transitions. [2024-11-10 02:58:51,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:58:51,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 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 145 [2024-11-10 02:58:51,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:51,143 INFO L225 Difference]: With dead ends: 1350 [2024-11-10 02:58:51,143 INFO L226 Difference]: Without dead ends: 735 [2024-11-10 02:58:51,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-10 02:58:51,144 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 323 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:51,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 248 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:58:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-10 02:58:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2024-11-10 02:58:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.4087193460490464) internal successors, (1034), 734 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1034 transitions. [2024-11-10 02:58:51,162 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1034 transitions. Word has length 145 [2024-11-10 02:58:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:51,162 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1034 transitions. [2024-11-10 02:58:51,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1034 transitions. [2024-11-10 02:58:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 02:58:51,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:51,164 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:58:51,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 02:58:51,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:51,365 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:51,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:51,365 INFO L85 PathProgramCache]: Analyzing trace with hash 732211320, now seen corresponding path program 1 times [2024-11-10 02:58:51,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:51,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644558999] [2024-11-10 02:58:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:51,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 55 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:53,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644558999] [2024-11-10 02:58:53,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644558999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997806327] [2024-11-10 02:58:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:53,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:53,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:53,225 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) [2024-11-10 02:58:53,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 02:58:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:54,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-10 02:58:54,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:58:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:54,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:58:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 39 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:55,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997806327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:58:55,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:58:55,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 13] total 34 [2024-11-10 02:58:55,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335659771] [2024-11-10 02:58:55,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:58:55,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 02:58:55,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:58:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 02:58:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 02:58:55,021 INFO L87 Difference]: Start difference. First operand 735 states and 1034 transitions. Second operand has 34 states, 34 states have (on average 10.735294117647058) internal successors, (365), 34 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:58:56,759 INFO L93 Difference]: Finished difference Result 4435 states and 6285 transitions. [2024-11-10 02:58:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-10 02:58:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.735294117647058) internal successors, (365), 34 states have internal predecessors, (365), 0 states have call successors, (0), 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 145 [2024-11-10 02:58:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:58:56,769 INFO L225 Difference]: With dead ends: 4435 [2024-11-10 02:58:56,769 INFO L226 Difference]: Without dead ends: 3850 [2024-11-10 02:58:56,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1604 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=734, Invalid=4668, Unknown=0, NotChecked=0, Total=5402 [2024-11-10 02:58:56,772 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 2008 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:58:56,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 780 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 02:58:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2024-11-10 02:58:56,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 2586. [2024-11-10 02:58:56,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 2585 states have (on average 1.4274661508704063) internal successors, (3690), 2585 states have internal predecessors, (3690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3690 transitions. [2024-11-10 02:58:56,823 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3690 transitions. Word has length 145 [2024-11-10 02:58:56,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:58:56,824 INFO L471 AbstractCegarLoop]: Abstraction has 2586 states and 3690 transitions. [2024-11-10 02:58:56,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.735294117647058) internal successors, (365), 34 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:58:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3690 transitions. [2024-11-10 02:58:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 02:58:56,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:58:56,827 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:58:56,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 02:58:57,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:57,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:58:57,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:58:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1579939856, now seen corresponding path program 1 times [2024-11-10 02:58:57,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:58:57,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832683719] [2024-11-10 02:58:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:58:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:58:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 66 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:58:59,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:58:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832683719] [2024-11-10 02:58:59,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832683719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:58:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413982579] [2024-11-10 02:58:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:58:59,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:58:59,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:58:59,451 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) [2024-11-10 02:58:59,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 02:59:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:00,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-11-10 02:59:00,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:59:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 41 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:59:01,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:59:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 41 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:59:02,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413982579] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:59:02,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:59:02,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 23, 19] total 52 [2024-11-10 02:59:02,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471215171] [2024-11-10 02:59:02,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:59:02,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-10 02:59:02,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:02,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-10 02:59:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=2343, Unknown=0, NotChecked=0, Total=2652 [2024-11-10 02:59:02,295 INFO L87 Difference]: Start difference. First operand 2586 states and 3690 transitions. Second operand has 52 states, 52 states have (on average 7.961538461538462) internal successors, (414), 52 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:12,540 INFO L93 Difference]: Finished difference Result 18737 states and 26493 transitions. [2024-11-10 02:59:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2024-11-10 02:59:12,541 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.961538461538462) internal successors, (414), 52 states have internal predecessors, (414), 0 states have call successors, (0), 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 145 [2024-11-10 02:59:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:12,583 INFO L225 Difference]: With dead ends: 18737 [2024-11-10 02:59:12,583 INFO L226 Difference]: Without dead ends: 16352 [2024-11-10 02:59:12,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20736 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4492, Invalid=54800, Unknown=0, NotChecked=0, Total=59292 [2024-11-10 02:59:12,595 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 2545 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 11575 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 11625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 11575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:12,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2545 Valid, 3007 Invalid, 11625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 11575 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-10 02:59:12,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16352 states. [2024-11-10 02:59:12,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16352 to 7359. [2024-11-10 02:59:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7359 states, 7358 states have (on average 1.4263386789888557) internal successors, (10495), 7358 states have internal predecessors, (10495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7359 states to 7359 states and 10495 transitions. [2024-11-10 02:59:12,777 INFO L78 Accepts]: Start accepts. Automaton has 7359 states and 10495 transitions. Word has length 145 [2024-11-10 02:59:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:12,777 INFO L471 AbstractCegarLoop]: Abstraction has 7359 states and 10495 transitions. [2024-11-10 02:59:12,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.961538461538462) internal successors, (414), 52 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7359 states and 10495 transitions. [2024-11-10 02:59:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 02:59:12,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:12,785 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:59:12,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 02:59:12,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:59:12,986 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:12,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:12,986 INFO L85 PathProgramCache]: Analyzing trace with hash 112352249, now seen corresponding path program 1 times [2024-11-10 02:59:12,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:12,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720759008] [2024-11-10 02:59:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:12,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 72 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:59:15,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720759008] [2024-11-10 02:59:15,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720759008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:59:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096507607] [2024-11-10 02:59:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:15,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:59:15,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:59:15,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 02:59:15,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 02:59:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:16,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-10 02:59:16,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:59:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 32 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 02:59:16,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:59:16,978 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 02:59:16,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096507607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:59:16,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:59:16,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 32 [2024-11-10 02:59:16,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697229221] [2024-11-10 02:59:16,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:59:16,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-10 02:59:16,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:16,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-10 02:59:16,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2024-11-10 02:59:16,980 INFO L87 Difference]: Start difference. First operand 7359 states and 10495 transitions. Second operand has 32 states, 32 states have (on average 11.59375) internal successors, (371), 32 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:19,981 INFO L93 Difference]: Finished difference Result 18655 states and 26372 transitions. [2024-11-10 02:59:19,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-10 02:59:19,981 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 11.59375) internal successors, (371), 32 states have internal predecessors, (371), 0 states have call successors, (0), 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 145 [2024-11-10 02:59:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:19,995 INFO L225 Difference]: With dead ends: 18655 [2024-11-10 02:59:19,995 INFO L226 Difference]: Without dead ends: 10256 [2024-11-10 02:59:20,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=4026, Unknown=0, NotChecked=0, Total=4556 [2024-11-10 02:59:20,003 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 874 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 5881 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 5894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 5881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:20,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1630 Invalid, 5894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 5881 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-10 02:59:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10256 states. [2024-11-10 02:59:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10256 to 6979. [2024-11-10 02:59:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 1.4122957867583834) internal successors, (9855), 6978 states have internal predecessors, (9855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 9855 transitions. [2024-11-10 02:59:20,142 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 9855 transitions. Word has length 145 [2024-11-10 02:59:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:20,143 INFO L471 AbstractCegarLoop]: Abstraction has 6979 states and 9855 transitions. [2024-11-10 02:59:20,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.59375) internal successors, (371), 32 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 9855 transitions. [2024-11-10 02:59:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 02:59:20,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:20,149 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:59:20,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 02:59:20,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-10 02:59:20,350 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:20,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1181436174, now seen corresponding path program 1 times [2024-11-10 02:59:20,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:20,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254842491] [2024-11-10 02:59:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-10 02:59:22,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254842491] [2024-11-10 02:59:22,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254842491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:59:22,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:59:22,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:59:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790914669] [2024-11-10 02:59:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:59:22,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:59:22,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:22,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:59:22,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:59:22,995 INFO L87 Difference]: Start difference. First operand 6979 states and 9855 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:23,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:23,326 INFO L93 Difference]: Finished difference Result 13847 states and 19559 transitions. [2024-11-10 02:59:23,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:59:23,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 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 146 [2024-11-10 02:59:23,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:23,339 INFO L225 Difference]: With dead ends: 13847 [2024-11-10 02:59:23,339 INFO L226 Difference]: Without dead ends: 6970 [2024-11-10 02:59:23,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:59:23,347 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 207 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:23,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 159 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:59:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6970 states. [2024-11-10 02:59:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6970 to 6970. [2024-11-10 02:59:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6970 states, 6969 states have (on average 1.4122542689051514) internal successors, (9842), 6969 states have internal predecessors, (9842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6970 states to 6970 states and 9842 transitions. [2024-11-10 02:59:23,448 INFO L78 Accepts]: Start accepts. Automaton has 6970 states and 9842 transitions. Word has length 146 [2024-11-10 02:59:23,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:23,448 INFO L471 AbstractCegarLoop]: Abstraction has 6970 states and 9842 transitions. [2024-11-10 02:59:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6970 states and 9842 transitions. [2024-11-10 02:59:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 02:59:23,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:23,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:59:23,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 02:59:23,454 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:23,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:23,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1948662317, now seen corresponding path program 1 times [2024-11-10 02:59:23,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:23,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683978826] [2024-11-10 02:59:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:23,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 66 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:59:24,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:24,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683978826] [2024-11-10 02:59:24,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683978826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:59:24,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939104319] [2024-11-10 02:59:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:24,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:59:24,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:59:24,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 02:59:24,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 02:59:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:25,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-10 02:59:25,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:59:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:59:25,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:59:25,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939104319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:59:25,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:59:25,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2024-11-10 02:59:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603006297] [2024-11-10 02:59:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:59:25,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:59:25,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:25,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:59:25,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-10 02:59:25,527 INFO L87 Difference]: Start difference. First operand 6970 states and 9842 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:25,968 INFO L93 Difference]: Finished difference Result 17506 states and 24746 transitions. [2024-11-10 02:59:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 02:59:25,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-10 02:59:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:25,983 INFO L225 Difference]: With dead ends: 17506 [2024-11-10 02:59:25,984 INFO L226 Difference]: Without dead ends: 10638 [2024-11-10 02:59:25,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-10 02:59:25,992 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 218 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:25,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 322 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:59:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10638 states. [2024-11-10 02:59:26,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10638 to 10490. [2024-11-10 02:59:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10490 states, 10489 states have (on average 1.408999904662027) internal successors, (14779), 10489 states have internal predecessors, (14779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10490 states to 10490 states and 14779 transitions. [2024-11-10 02:59:26,199 INFO L78 Accepts]: Start accepts. Automaton has 10490 states and 14779 transitions. Word has length 146 [2024-11-10 02:59:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:26,199 INFO L471 AbstractCegarLoop]: Abstraction has 10490 states and 14779 transitions. [2024-11-10 02:59:26,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10490 states and 14779 transitions. [2024-11-10 02:59:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 02:59:26,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:26,210 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:59:26,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 02:59:26,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-10 02:59:26,411 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:26,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:26,411 INFO L85 PathProgramCache]: Analyzing trace with hash 663461468, now seen corresponding path program 1 times [2024-11-10 02:59:26,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:26,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063234019] [2024-11-10 02:59:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:26,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 02:59:27,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:27,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063234019] [2024-11-10 02:59:27,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063234019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:59:27,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:59:27,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:59:27,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650953554] [2024-11-10 02:59:27,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:59:27,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:59:27,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:27,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:59:27,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:59:27,327 INFO L87 Difference]: Start difference. First operand 10490 states and 14779 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:27,610 INFO L93 Difference]: Finished difference Result 19288 states and 27316 transitions. [2024-11-10 02:59:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:59:27,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 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 147 [2024-11-10 02:59:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:27,622 INFO L225 Difference]: With dead ends: 19288 [2024-11-10 02:59:27,622 INFO L226 Difference]: Without dead ends: 8900 [2024-11-10 02:59:27,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:59:27,633 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 250 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:27,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 164 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:59:27,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states. [2024-11-10 02:59:27,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 8311. [2024-11-10 02:59:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8311 states, 8310 states have (on average 1.39338146811071) internal successors, (11579), 8310 states have internal predecessors, (11579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8311 states to 8311 states and 11579 transitions. [2024-11-10 02:59:27,745 INFO L78 Accepts]: Start accepts. Automaton has 8311 states and 11579 transitions. Word has length 147 [2024-11-10 02:59:27,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:27,746 INFO L471 AbstractCegarLoop]: Abstraction has 8311 states and 11579 transitions. [2024-11-10 02:59:27,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8311 states and 11579 transitions. [2024-11-10 02:59:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 02:59:27,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:27,749 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 02:59:27,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 02:59:27,749 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:27,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2140219854, now seen corresponding path program 1 times [2024-11-10 02:59:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:27,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230436901] [2024-11-10 02:59:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:27,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 02:59:28,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:28,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230436901] [2024-11-10 02:59:28,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230436901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:59:28,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:59:28,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:59:28,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826825101] [2024-11-10 02:59:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:59:28,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:59:28,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:59:28,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:59:28,704 INFO L87 Difference]: Start difference. First operand 8311 states and 11579 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:59:28,967 INFO L93 Difference]: Finished difference Result 16522 states and 23023 transitions. [2024-11-10 02:59:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:59:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 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 147 [2024-11-10 02:59:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:59:28,978 INFO L225 Difference]: With dead ends: 16522 [2024-11-10 02:59:28,978 INFO L226 Difference]: Without dead ends: 8313 [2024-11-10 02:59:28,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:59:28,985 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 249 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:59:28,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 162 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:59:28,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8313 states. [2024-11-10 02:59:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8313 to 8313. [2024-11-10 02:59:29,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8313 states, 8312 states have (on average 1.3932868142444659) internal successors, (11581), 8312 states have internal predecessors, (11581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8313 states to 8313 states and 11581 transitions. [2024-11-10 02:59:29,091 INFO L78 Accepts]: Start accepts. Automaton has 8313 states and 11581 transitions. Word has length 147 [2024-11-10 02:59:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:59:29,091 INFO L471 AbstractCegarLoop]: Abstraction has 8313 states and 11581 transitions. [2024-11-10 02:59:29,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:59:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 8313 states and 11581 transitions. [2024-11-10 02:59:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-10 02:59:29,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:59:29,097 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-10 02:59:29,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 02:59:29,097 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:59:29,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:59:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1667359932, now seen corresponding path program 1 times [2024-11-10 02:59:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:59:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605296919] [2024-11-10 02:59:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:59:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:30,725 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 02:59:30,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:59:30,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605296919] [2024-11-10 02:59:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605296919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:59:30,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176510754] [2024-11-10 02:59:30,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:59:30,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:59:30,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:59:30,727 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 02:59:30,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 02:59:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:59:31,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 2081 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-10 02:59:31,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:59:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 143 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-10 02:59:32,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:59:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 150 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-10 02:59:33,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176510754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:59:33,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:59:33,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 12] total 31 [2024-11-10 02:59:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446054225] [2024-11-10 02:59:33,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:59:33,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-10 02:59:33,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:59:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-10 02:59:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2024-11-10 02:59:33,321 INFO L87 Difference]: Start difference. First operand 8313 states and 11581 transitions. Second operand has 31 states, 31 states have (on average 15.548387096774194) internal successors, (482), 31 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)