./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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.cal32.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 d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:00:36,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:00:36,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:00:36,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:00:36,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:00:36,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:00:36,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:00:36,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:00:36,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:00:36,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:00:36,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:00:36,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:00:36,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:00:36,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:00:36,659 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:00:36,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:00:36,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:00:36,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:00:36,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:00:36,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:00:36,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:00:36,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:00:36,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:00:36,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:00:36,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:00:36,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:00:36,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:00:36,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:00:36,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:00:36,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:00:36,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:00:36,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:00:36,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:00:36,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:00:36,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:00:36,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:00:36,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:00:36,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:00:36,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:00:36,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4b828fa93b5d6014948abfbb816d407ef4c58e959e4e8b2a37658f7831f7658 [2024-11-18 17:00:36,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:00:36,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:00:36,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:00:36,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:00:36,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:00:36,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2024-11-18 17:00:38,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:00:38,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:00:38,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal32.c [2024-11-18 17:00:38,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897265f81/f41e5c7c7cdf4327885348285ccdddec/FLAGbb4641ae4 [2024-11-18 17:00:38,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897265f81/f41e5c7c7cdf4327885348285ccdddec [2024-11-18 17:00:38,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:00:38,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:00:38,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:00:38,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:00:38,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:00:38,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:38" (1/1) ... [2024-11-18 17:00:38,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c44bb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:38, skipping insertion in model container [2024-11-18 17:00:38,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:38" (1/1) ... [2024-11-18 17:00:38,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:00:39,188 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.cal32.c[1245,1258] [2024-11-18 17:00:40,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:00:40,194 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:00:40,203 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.cal32.c[1245,1258] [2024-11-18 17:00:40,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:00:40,741 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:00:40,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40 WrapperNode [2024-11-18 17:00:40,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:00:40,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:00:40,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:00:40,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:00:40,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:40,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:43,929 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35451 [2024-11-18 17:00:43,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:00:43,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:00:43,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:00:43,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:00:43,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:43,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:44,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:45,166 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-18 17:00:45,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:45,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:00:46,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:00:46,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:00:46,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:00:46,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (1/1) ... [2024-11-18 17:00:46,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:00:46,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:00:46,929 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) [2024-11-18 17:00:46,931 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 [2024-11-18 17:00:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:00:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:00:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 17:00:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:00:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:00:48,436 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:00:48,438 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:01:53,343 INFO L? ?]: Removed 19331 outVars from TransFormulas that were not future-live. [2024-11-18 17:01:53,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:01:53,448 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:01:53,448 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:01:53,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:01:53 BoogieIcfgContainer [2024-11-18 17:01:53,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:01:53,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:01:53,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:01:53,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:01:53,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:00:38" (1/3) ... [2024-11-18 17:01:53,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019c915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:01:53, skipping insertion in model container [2024-11-18 17:01:53,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:40" (2/3) ... [2024-11-18 17:01:53,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019c915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:01:53, skipping insertion in model container [2024-11-18 17:01:53,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:01:53" (3/3) ... [2024-11-18 17:01:53,458 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal32.c [2024-11-18 17:01:53,473 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:01:53,474 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:01:53,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:01:53,665 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;@5e11d0b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:01:53,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:01:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 12293 states, 12291 states have (on average 1.500528842242291) internal successors, (18443), 12292 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 17:01:53,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:01:53,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:01:53,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:01:53,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:01:53,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1464882239, now seen corresponding path program 1 times [2024-11-18 17:01:53,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:01:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569710135] [2024-11-18 17:01:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:01:53,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:01:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:01:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:01:54,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:01:54,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569710135] [2024-11-18 17:01:54,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569710135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:01:54,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:01:54,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:01:54,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713208574] [2024-11-18 17:01:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:01:54,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:01:54,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:01:54,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:01:54,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:01:54,771 INFO L87 Difference]: Start difference. First operand has 12293 states, 12291 states have (on average 1.500528842242291) internal successors, (18443), 12292 states have internal predecessors, (18443), 0 states have call successors, (0), 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 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:55,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:01:55,120 INFO L93 Difference]: Finished difference Result 24495 states and 36753 transitions. [2024-11-18 17:01:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:01:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-18 17:01:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:01:55,173 INFO L225 Difference]: With dead ends: 24495 [2024-11-18 17:01:55,173 INFO L226 Difference]: Without dead ends: 12292 [2024-11-18 17:01:55,196 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 [2024-11-18 17:01:55,199 INFO L432 NwaCegarLoop]: 18437 mSDtfsCounter, 0 mSDsluCounter, 36868 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55305 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:01:55,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55305 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:01:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12292 states. [2024-11-18 17:01:55,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12292 to 12292. [2024-11-18 17:01:55,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12292 states, 12291 states have (on average 1.5003661215523554) internal successors, (18441), 12291 states have internal predecessors, (18441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12292 states to 12292 states and 18441 transitions. [2024-11-18 17:01:55,499 INFO L78 Accepts]: Start accepts. Automaton has 12292 states and 18441 transitions. Word has length 105 [2024-11-18 17:01:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:01:55,501 INFO L471 AbstractCegarLoop]: Abstraction has 12292 states and 18441 transitions. [2024-11-18 17:01:55,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 12292 states and 18441 transitions. [2024-11-18 17:01:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 17:01:55,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:01:55,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:01:55,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 17:01:55,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:01:55,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:01:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1831595044, now seen corresponding path program 1 times [2024-11-18 17:01:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:01:55,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765381354] [2024-11-18 17:01:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:01:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:01:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:01:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:01:55,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:01:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765381354] [2024-11-18 17:01:55,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765381354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:01:55,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:01:55,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:01:55,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029929677] [2024-11-18 17:01:55,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:01:55,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:01:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:01:55,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:01:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:01:55,886 INFO L87 Difference]: Start difference. First operand 12292 states and 18441 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:01:56,132 INFO L93 Difference]: Finished difference Result 24496 states and 36751 transitions. [2024-11-18 17:01:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:01:56,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-18 17:01:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:01:56,169 INFO L225 Difference]: With dead ends: 24496 [2024-11-18 17:01:56,170 INFO L226 Difference]: Without dead ends: 12294 [2024-11-18 17:01:56,187 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 [2024-11-18 17:01:56,189 INFO L432 NwaCegarLoop]: 18437 mSDtfsCounter, 0 mSDsluCounter, 36864 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55301 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:01:56,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55301 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:01:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12294 states. [2024-11-18 17:01:56,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12294 to 12294. [2024-11-18 17:01:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12294 states, 12293 states have (on average 1.500284714878386) internal successors, (18443), 12293 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12294 states to 12294 states and 18443 transitions. [2024-11-18 17:01:56,411 INFO L78 Accepts]: Start accepts. Automaton has 12294 states and 18443 transitions. Word has length 106 [2024-11-18 17:01:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:01:56,413 INFO L471 AbstractCegarLoop]: Abstraction has 12294 states and 18443 transitions. [2024-11-18 17:01:56,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:56,414 INFO L276 IsEmpty]: Start isEmpty. Operand 12294 states and 18443 transitions. [2024-11-18 17:01:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 17:01:56,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:01:56,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:01:56,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:01:56,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:01:56,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:01:56,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2042836808, now seen corresponding path program 1 times [2024-11-18 17:01:56,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:01:56,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656676233] [2024-11-18 17:01:56,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:01:56,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:01:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:01:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:01:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:01:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656676233] [2024-11-18 17:01:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656676233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:01:56,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:01:56,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:01:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190391246] [2024-11-18 17:01:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:01:56,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:01:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:01:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:01:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:01:56,844 INFO L87 Difference]: Start difference. First operand 12294 states and 18443 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:01:58,089 INFO L93 Difference]: Finished difference Result 36474 states and 54721 transitions. [2024-11-18 17:01:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:01:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-18 17:01:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:01:58,122 INFO L225 Difference]: With dead ends: 36474 [2024-11-18 17:01:58,122 INFO L226 Difference]: Without dead ends: 12298 [2024-11-18 17:01:58,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 17:01:58,148 INFO L432 NwaCegarLoop]: 18393 mSDtfsCounter, 17830 mSDsluCounter, 54619 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17830 SdHoareTripleChecker+Valid, 73012 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 17:01:58,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17830 Valid, 73012 Invalid, 1085 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [115 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 17:01:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12298 states. [2024-11-18 17:01:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12298 to 12296. [2024-11-18 17:01:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12296 states, 12295 states have (on average 1.5002033346888979) internal successors, (18445), 12295 states have internal predecessors, (18445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12296 states to 12296 states and 18445 transitions. [2024-11-18 17:01:58,375 INFO L78 Accepts]: Start accepts. Automaton has 12296 states and 18445 transitions. Word has length 107 [2024-11-18 17:01:58,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:01:58,376 INFO L471 AbstractCegarLoop]: Abstraction has 12296 states and 18445 transitions. [2024-11-18 17:01:58,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:01:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12296 states and 18445 transitions. [2024-11-18 17:01:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 17:01:58,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:01:58,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:01:58,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:01:58,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:01:58,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:01:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1171028403, now seen corresponding path program 1 times [2024-11-18 17:01:58,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:01:58,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659191817] [2024-11-18 17:01:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:01:58,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:01:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:01:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:01:59,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:01:59,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659191817] [2024-11-18 17:01:59,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659191817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:01:59,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:01:59,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 17:01:59,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153503277] [2024-11-18 17:01:59,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:01:59,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 17:01:59,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:01:59,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 17:01:59,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 17:01:59,289 INFO L87 Difference]: Start difference. First operand 12296 states and 18445 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:02:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:02:01,003 INFO L93 Difference]: Finished difference Result 25540 states and 38304 transitions. [2024-11-18 17:02:01,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 17:02:01,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-11-18 17:02:01,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:02:01,031 INFO L225 Difference]: With dead ends: 25540 [2024-11-18 17:02:01,032 INFO L226 Difference]: Without dead ends: 13334 [2024-11-18 17:02:01,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-18 17:02:01,049 INFO L432 NwaCegarLoop]: 18810 mSDtfsCounter, 20385 mSDsluCounter, 110532 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20385 SdHoareTripleChecker+Valid, 129342 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:02:01,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20385 Valid, 129342 Invalid, 1569 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [14 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 17:02:01,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2024-11-18 17:02:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 12318. [2024-11-18 17:02:01,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12318 states, 12317 states have (on average 1.5000405943005601) internal successors, (18476), 12317 states have internal predecessors, (18476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:02:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12318 states to 12318 states and 18476 transitions. [2024-11-18 17:02:01,293 INFO L78 Accepts]: Start accepts. Automaton has 12318 states and 18476 transitions. Word has length 108 [2024-11-18 17:02:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:02:01,293 INFO L471 AbstractCegarLoop]: Abstraction has 12318 states and 18476 transitions. [2024-11-18 17:02:01,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 17:02:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 12318 states and 18476 transitions. [2024-11-18 17:02:01,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 17:02:01,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:02:01,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:02:01,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:02:01,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:02:01,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:02:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1023954284, now seen corresponding path program 1 times [2024-11-18 17:02:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:02:01,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020936317] [2024-11-18 17:02:01,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:02:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:02:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat