./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array22_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 20:59:38,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 20:59:38,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 20:59:38,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 20:59:38,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 20:59:38,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 20:59:38,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 20:59:38,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 20:59:38,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 20:59:38,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 20:59:38,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 20:59:38,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 20:59:38,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 20:59:38,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 20:59:38,242 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 20:59:38,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 20:59:38,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 20:59:38,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 20:59:38,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 20:59:38,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 20:59:38,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 20:59:38,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 20:59:38,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 20:59:38,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 20:59:38,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 20:59:38,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 20:59:38,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 20:59:38,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:59:38,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 20:59:38,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 20:59:38,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 20:59:38,248 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2024-11-21 20:59:38,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 20:59:38,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 20:59:38,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 20:59:38,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 20:59:38,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 20:59:38,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-21 20:59:39,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 20:59:39,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 20:59:39,870 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-21 20:59:39,878 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4527d27/235208aa22a64160b2eeeb6bbd26445d/FLAG682c06a12 [2024-11-21 20:59:39,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4527d27/235208aa22a64160b2eeeb6bbd26445d [2024-11-21 20:59:39,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 20:59:39,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 20:59:39,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 20:59:39,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 20:59:39,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 20:59:39,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:39" (1/1) ... [2024-11-21 20:59:39,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fdd0bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:39, skipping insertion in model container [2024-11-21 20:59:39,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:39" (1/1) ... [2024-11-21 20:59:39,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 20:59:40,069 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/array-patterns/array22_pattern.c[1347,1360] [2024-11-21 20:59:40,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:59:40,103 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 20:59:40,114 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/array-patterns/array22_pattern.c[1347,1360] [2024-11-21 20:59:40,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:59:40,144 INFO L204 MainTranslator]: Completed translation [2024-11-21 20:59:40,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40 WrapperNode [2024-11-21 20:59:40,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 20:59:40,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 20:59:40,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 20:59:40,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 20:59:40,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,177 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2024-11-21 20:59:40,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 20:59:40,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 20:59:40,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 20:59:40,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 20:59:40,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,201 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-21 20:59:40,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,208 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 20:59:40,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 20:59:40,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 20:59:40,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 20:59:40,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (1/1) ... [2024-11-21 20:59:40,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:59:40,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:59:40,246 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) [2024-11-21 20:59:40,251 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 [2024-11-21 20:59:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2024-11-21 20:59:40,288 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2024-11-21 20:59:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 20:59:40,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-21 20:59:40,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 20:59:40,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 20:59:40,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-21 20:59:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-21 20:59:40,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 20:59:40,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 20:59:40,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 20:59:40,522 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-21 20:59:40,522 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 20:59:40,536 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 20:59:40,537 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-21 20:59:40,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:40 BoogieIcfgContainer [2024-11-21 20:59:40,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 20:59:40,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 20:59:40,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 20:59:40,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 20:59:40,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:39" (1/3) ... [2024-11-21 20:59:40,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338cb72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:40, skipping insertion in model container [2024-11-21 20:59:40,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:40" (2/3) ... [2024-11-21 20:59:40,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338cb72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:40, skipping insertion in model container [2024-11-21 20:59:40,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:40" (3/3) ... [2024-11-21 20:59:40,546 INFO L112 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2024-11-21 20:59:40,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 20:59:40,559 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 20:59:40,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 20:59:40,619 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;@46d63ad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 20:59:40,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 20:59:40,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-21 20:59:40,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:40,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:59:40,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:40,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908762, now seen corresponding path program 1 times [2024-11-21 20:59:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:40,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082843470] [2024-11-21 20:59:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:40,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 20:59:40,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:40,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082843470] [2024-11-21 20:59:40,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082843470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:59:40,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:59:40,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 20:59:40,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203845791] [2024-11-21 20:59:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:59:40,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 20:59:40,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 20:59:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 20:59:40,780 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-21 20:59:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:40,793 INFO L93 Difference]: Finished difference Result 79 states and 117 transitions. [2024-11-21 20:59:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 20:59:40,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-21 20:59:40,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:40,799 INFO L225 Difference]: With dead ends: 79 [2024-11-21 20:59:40,799 INFO L226 Difference]: Without dead ends: 37 [2024-11-21 20:59:40,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 20:59:40,803 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:40,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:59:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-21 20:59:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-21 20:59:40,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:40,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-11-21 20:59:40,833 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 15 [2024-11-21 20:59:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:40,834 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-11-21 20:59:40,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-21 20:59:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-11-21 20:59:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-21 20:59:40,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:40,836 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-21 20:59:40,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 20:59:40,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:40,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:40,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1909329698, now seen corresponding path program 1 times [2024-11-21 20:59:40,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:40,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317070982] [2024-11-21 20:59:40,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:40,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-21 20:59:41,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:41,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317070982] [2024-11-21 20:59:41,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317070982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:59:41,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:59:41,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 20:59:41,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451137278] [2024-11-21 20:59:41,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:59:41,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 20:59:41,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 20:59:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 20:59:41,146 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:41,169 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-11-21 20:59:41,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 20:59:41,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-21 20:59:41,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:41,171 INFO L225 Difference]: With dead ends: 44 [2024-11-21 20:59:41,171 INFO L226 Difference]: Without dead ends: 40 [2024-11-21 20:59:41,171 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 [2024-11-21 20:59:41,172 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:41,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 110 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:59:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-21 20:59:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-21 20:59:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:41,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-11-21 20:59:41,185 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 42 [2024-11-21 20:59:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:41,187 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-11-21 20:59:41,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,187 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-11-21 20:59:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-21 20:59:41,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:41,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-21 20:59:41,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 20:59:41,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:41,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1786751912, now seen corresponding path program 1 times [2024-11-21 20:59:41,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:41,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489189397] [2024-11-21 20:59:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:41,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-21 20:59:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489189397] [2024-11-21 20:59:41,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489189397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:59:41,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:59:41,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 20:59:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837414741] [2024-11-21 20:59:41,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:59:41,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 20:59:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 20:59:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:59:41,362 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:41,483 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2024-11-21 20:59:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 20:59:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-21 20:59:41,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:41,485 INFO L225 Difference]: With dead ends: 83 [2024-11-21 20:59:41,485 INFO L226 Difference]: Without dead ends: 50 [2024-11-21 20:59:41,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:59:41,486 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 22 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:41,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 110 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 20:59:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-21 20:59:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-11-21 20:59:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-21 20:59:41,492 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 47 [2024-11-21 20:59:41,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:41,492 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-21 20:59:41,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2024-11-21 20:59:41,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-21 20:59:41,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:41,494 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-21 20:59:41,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 20:59:41,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:41,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:41,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2075657686, now seen corresponding path program 1 times [2024-11-21 20:59:41,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:41,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849763533] [2024-11-21 20:59:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:41,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:41,599 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-21 20:59:41,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:41,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849763533] [2024-11-21 20:59:41,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849763533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:59:41,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:59:41,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 20:59:41,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840803553] [2024-11-21 20:59:41,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:59:41,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 20:59:41,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:41,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 20:59:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 20:59:41,601 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:41,657 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2024-11-21 20:59:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 20:59:41,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-21 20:59:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:41,660 INFO L225 Difference]: With dead ends: 85 [2024-11-21 20:59:41,660 INFO L226 Difference]: Without dead ends: 49 [2024-11-21 20:59:41,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 20:59:41,661 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:41,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 97 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:59:41,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-21 20:59:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-11-21 20:59:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-21 20:59:41,669 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 50 [2024-11-21 20:59:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:41,669 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-21 20:59:41,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 20:59:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-11-21 20:59:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-21 20:59:41,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:41,673 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-21 20:59:41,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 20:59:41,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:41,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash 874891816, now seen corresponding path program 1 times [2024-11-21 20:59:41,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:41,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579828484] [2024-11-21 20:59:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:41,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 20:59:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579828484] [2024-11-21 20:59:41,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579828484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:59:41,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2220839] [2024-11-21 20:59:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:59:41,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:59:41,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:59:41,842 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) [2024-11-21 20:59:41,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-21 20:59:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:59:41,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 20:59:41,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:59:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-21 20:59:41,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:59:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-21 20:59:42,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2220839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:59:42,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:59:42,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-21 20:59:42,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077559652] [2024-11-21 20:59:42,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:59:42,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 20:59:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 20:59:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-21 20:59:42,112 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-21 20:59:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:42,236 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-11-21 20:59:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 20:59:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2024-11-21 20:59:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:42,238 INFO L225 Difference]: With dead ends: 88 [2024-11-21 20:59:42,238 INFO L226 Difference]: Without dead ends: 53 [2024-11-21 20:59:42,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-21 20:59:42,239 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 81 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:42,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 109 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 20:59:42,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-21 20:59:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-11-21 20:59:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-11-21 20:59:42,246 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 52 [2024-11-21 20:59:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:42,248 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-11-21 20:59:42,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-21 20:59:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-11-21 20:59:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-21 20:59:42,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:42,249 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-21 20:59:42,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-21 20:59:42,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:59:42,452 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:42,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1211966936, now seen corresponding path program 2 times [2024-11-21 20:59:42,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:42,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566502995] [2024-11-21 20:59:42,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 20:59:42,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:42,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 20:59:42,473 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:59:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-21 20:59:42,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:59:42,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566502995] [2024-11-21 20:59:42,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566502995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 20:59:42,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196143540] [2024-11-21 20:59:42,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 20:59:42,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:59:42,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:59:42,571 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) [2024-11-21 20:59:42,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 20:59:42,628 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 20:59:42,629 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:59:42,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 20:59:42,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:59:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-21 20:59:42,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 20:59:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-21 20:59:42,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196143540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 20:59:42,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 20:59:42,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-21 20:59:42,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167886891] [2024-11-21 20:59:42,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 20:59:42,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-21 20:59:42,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:59:42,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-21 20:59:42,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-21 20:59:42,786 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-21 20:59:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:59:43,036 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2024-11-21 20:59:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-21 20:59:43,037 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 56 [2024-11-21 20:59:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:59:43,038 INFO L225 Difference]: With dead ends: 108 [2024-11-21 20:59:43,038 INFO L226 Difference]: Without dead ends: 75 [2024-11-21 20:59:43,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-21 20:59:43,039 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 47 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-21 20:59:43,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 250 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-21 20:59:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-21 20:59:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-11-21 20:59:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-21 20:59:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2024-11-21 20:59:43,049 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 56 [2024-11-21 20:59:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:59:43,050 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2024-11-21 20:59:43,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-21 20:59:43,050 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2024-11-21 20:59:43,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 20:59:43,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:59:43,052 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 20:59:43,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 20:59:43,253 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,SelfDestructingSolverStorable5 [2024-11-21 20:59:43,253 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:59:43,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:59:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash -511912674, now seen corresponding path program 3 times [2024-11-21 20:59:43,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:59:43,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564908355] [2024-11-21 20:59:43,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 20:59:43,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:59:43,305 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-21 20:59:43,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-21 20:59:43,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352817478] [2024-11-21 20:59:43,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-21 20:59:43,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 20:59:43,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:59:43,311 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) [2024-11-21 20:59:43,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 20:59:45,272 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-21 20:59:45,272 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 20:59:45,274 WARN L253 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-21 20:59:45,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 20:59:45,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 20:59:45,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-21 20:59:45,605 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2024-11-21 20:59:45,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2024-11-21 20:59:45,712 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-11-21 20:59:45,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 44 [2024-11-21 20:59:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:46,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:46,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:46,831 INFO L349 Elim1Store]: treesize reduction 266, result has 30.9 percent of original size [2024-11-21 20:59:46,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 88 treesize of output 158 [2024-11-21 20:59:53,571 INFO L349 Elim1Store]: treesize reduction 192, result has 34.9 percent of original size [2024-11-21 20:59:53,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 468 treesize of output 500 [2024-11-21 20:59:57,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:57,186 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 20:59:57,306 INFO L349 Elim1Store]: treesize reduction 370, result has 5.6 percent of original size [2024-11-21 20:59:57,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 693 treesize of output 890 [2024-11-21 20:59:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,425 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 20:59:58,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 65 [2024-11-21 20:59:58,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,440 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 20:59:58,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,488 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 20:59:58,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:58,825 INFO L349 Elim1Store]: treesize reduction 775, result has 7.5 percent of original size [2024-11-21 20:59:58,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 384 treesize of output 666 [2024-11-21 20:59:59,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 20:59:59,506 INFO L349 Elim1Store]: treesize reduction 162, result has 32.8 percent of original size [2024-11-21 20:59:59,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 204 treesize of output 196 [2024-11-21 21:00:08,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 213 [2024-11-21 21:00:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:08,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:08,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:08,822 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-21 21:00:08,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 1 [2024-11-21 21:00:08,835 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-21 21:00:08,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 1 [2024-11-21 21:00:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 21:00:09,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:13,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:13,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564908355] [2024-11-21 21:00:13,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-21 21:00:13,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352817478] [2024-11-21 21:00:13,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352817478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:13,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-21 21:00:13,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2024-11-21 21:00:13,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969236849] [2024-11-21 21:00:13,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:13,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-21 21:00:13,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:13,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-21 21:00:13,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=4252, Unknown=1, NotChecked=0, Total=4692 [2024-11-21 21:00:13,908 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-21 21:00:19,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-21 21:00:22,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:22,175 INFO L93 Difference]: Finished difference Result 181 states and 218 transitions. [2024-11-21 21:00:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-21 21:00:22,176 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 70 [2024-11-21 21:00:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:22,177 INFO L225 Difference]: With dead ends: 181 [2024-11-21 21:00:22,177 INFO L226 Difference]: Without dead ends: 137 [2024-11-21 21:00:22,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=543, Invalid=5308, Unknown=1, NotChecked=0, Total=5852 [2024-11-21 21:00:22,179 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 97 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:22,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 543 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1839 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2024-11-21 21:00:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-21 21:00:22,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 116. [2024-11-21 21:00:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.183673469387755) internal successors, (116), 99 states have internal predecessors, (116), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-21 21:00:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2024-11-21 21:00:22,211 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 70 [2024-11-21 21:00:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:22,213 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2024-11-21 21:00:22,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-21 21:00:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2024-11-21 21:00:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:22,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:22,215 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:22,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 21:00:22,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:22,415 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:22,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash -480892867, now seen corresponding path program 1 times [2024-11-21 21:00:22,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:22,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689519063] [2024-11-21 21:00:22,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:22,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-21 21:00:22,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:22,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689519063] [2024-11-21 21:00:22,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689519063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 21:00:22,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 21:00:22,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 21:00:22,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862622401] [2024-11-21 21:00:22,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 21:00:22,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 21:00:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:22,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 21:00:22,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 21:00:22,479 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-21 21:00:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:22,504 INFO L93 Difference]: Finished difference Result 162 states and 191 transitions. [2024-11-21 21:00:22,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 21:00:22,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-21 21:00:22,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:22,507 INFO L225 Difference]: With dead ends: 162 [2024-11-21 21:00:22,507 INFO L226 Difference]: Without dead ends: 122 [2024-11-21 21:00:22,507 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 [2024-11-21 21:00:22,507 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:22,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 21:00:22,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-21 21:00:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-11-21 21:00:22,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-21 21:00:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2024-11-21 21:00:22,531 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 70 [2024-11-21 21:00:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:22,531 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2024-11-21 21:00:22,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-21 21:00:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2024-11-21 21:00:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:22,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:22,534 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:22,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 21:00:22,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:22,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash -262038149, now seen corresponding path program 1 times [2024-11-21 21:00:22,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:22,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542554076] [2024-11-21 21:00:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:22,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-21 21:00:22,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:22,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542554076] [2024-11-21 21:00:22,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542554076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:22,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619216618] [2024-11-21 21:00:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:22,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:22,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:22,691 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) [2024-11-21 21:00:22,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 21:00:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:22,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-21 21:00:22,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-21 21:00:22,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-21 21:00:23,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619216618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:23,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:23,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 15 [2024-11-21 21:00:23,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551018958] [2024-11-21 21:00:23,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:23,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-21 21:00:23,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-21 21:00:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-21 21:00:23,006 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-21 21:00:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:23,203 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2024-11-21 21:00:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-21 21:00:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 70 [2024-11-21 21:00:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:23,205 INFO L225 Difference]: With dead ends: 183 [2024-11-21 21:00:23,205 INFO L226 Difference]: Without dead ends: 137 [2024-11-21 21:00:23,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-21 21:00:23,206 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 30 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:23,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 149 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 21:00:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-21 21:00:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2024-11-21 21:00:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.1785714285714286) internal successors, (132), 112 states have internal predecessors, (132), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-21 21:00:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2024-11-21 21:00:23,241 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 70 [2024-11-21 21:00:23,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:23,243 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2024-11-21 21:00:23,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-21 21:00:23,243 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2024-11-21 21:00:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:23,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:23,244 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:23,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 21:00:23,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:23,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:23,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:23,452 INFO L85 PathProgramCache]: Analyzing trace with hash -489280420, now seen corresponding path program 1 times [2024-11-21 21:00:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:23,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485643940] [2024-11-21 21:00:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-21 21:00:23,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:23,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485643940] [2024-11-21 21:00:23,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485643940] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:23,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258814158] [2024-11-21 21:00:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:23,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:23,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:23,512 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) [2024-11-21 21:00:23,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 21:00:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:23,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 21:00:23,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-21 21:00:23,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 21:00:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258814158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 21:00:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 21:00:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-21 21:00:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670901824] [2024-11-21 21:00:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 21:00:23,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 21:00:23,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:23,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 21:00:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 21:00:23,583 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 21:00:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:23,610 INFO L93 Difference]: Finished difference Result 184 states and 219 transitions. [2024-11-21 21:00:23,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 21:00:23,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-11-21 21:00:23,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:23,612 INFO L225 Difference]: With dead ends: 184 [2024-11-21 21:00:23,612 INFO L226 Difference]: Without dead ends: 134 [2024-11-21 21:00:23,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-21 21:00:23,612 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:23,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 21:00:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-21 21:00:23,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-21 21:00:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.1607142857142858) internal successors, (130), 112 states have internal predecessors, (130), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-21 21:00:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2024-11-21 21:00:23,653 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 70 [2024-11-21 21:00:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:23,653 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2024-11-21 21:00:23,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 21:00:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2024-11-21 21:00:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:23,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:23,654 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:23,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 21:00:23,854 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,SelfDestructingSolverStorable9 [2024-11-21 21:00:23,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:23,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash 763453850, now seen corresponding path program 1 times [2024-11-21 21:00:23,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:23,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614333511] [2024-11-21 21:00:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:23,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-21 21:00:23,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614333511] [2024-11-21 21:00:23,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614333511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191459221] [2024-11-21 21:00:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:23,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:23,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:23,902 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) [2024-11-21 21:00:23,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 21:00:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:23,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 21:00:23,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:23,981 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-21 21:00:23,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 21:00:23,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191459221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 21:00:23,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 21:00:23,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-21 21:00:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464993588] [2024-11-21 21:00:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 21:00:23,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 21:00:23,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:23,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 21:00:23,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 21:00:23,983 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 21:00:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:24,013 INFO L93 Difference]: Finished difference Result 201 states and 234 transitions. [2024-11-21 21:00:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 21:00:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-11-21 21:00:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:24,014 INFO L225 Difference]: With dead ends: 201 [2024-11-21 21:00:24,014 INFO L226 Difference]: Without dead ends: 128 [2024-11-21 21:00:24,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 21:00:24,015 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:24,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 21:00:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-21 21:00:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2024-11-21 21:00:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 106 states have internal predecessors, (121), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-21 21:00:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2024-11-21 21:00:24,039 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 70 [2024-11-21 21:00:24,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:24,039 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2024-11-21 21:00:24,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-21 21:00:24,040 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2024-11-21 21:00:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:24,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:24,041 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:24,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 21:00:24,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:24,242 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:24,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash 536211579, now seen corresponding path program 1 times [2024-11-21 21:00:24,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:24,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982266007] [2024-11-21 21:00:24,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:24,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 21:00:24,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:24,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982266007] [2024-11-21 21:00:24,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982266007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:24,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865488196] [2024-11-21 21:00:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:24,574 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) [2024-11-21 21:00:24,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-21 21:00:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:24,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-21 21:00:24,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-21 21:00:24,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-21 21:00:24,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865488196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:24,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:24,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 7] total 22 [2024-11-21 21:00:24,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010000756] [2024-11-21 21:00:24,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:24,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-21 21:00:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-21 21:00:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-11-21 21:00:24,899 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (13), 2 states have call predecessors, (13), 8 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-21 21:00:25,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:25,278 INFO L93 Difference]: Finished difference Result 265 states and 310 transitions. [2024-11-21 21:00:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-21 21:00:25,279 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (13), 2 states have call predecessors, (13), 8 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 70 [2024-11-21 21:00:25,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:25,280 INFO L225 Difference]: With dead ends: 265 [2024-11-21 21:00:25,280 INFO L226 Difference]: Without dead ends: 215 [2024-11-21 21:00:25,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2024-11-21 21:00:25,281 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 43 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:25,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 384 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-21 21:00:25,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-21 21:00:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 128. [2024-11-21 21:00:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 108 states have (on average 1.1388888888888888) internal successors, (123), 107 states have internal predecessors, (123), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-21 21:00:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 145 transitions. [2024-11-21 21:00:25,313 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 145 transitions. Word has length 70 [2024-11-21 21:00:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:25,313 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 145 transitions. [2024-11-21 21:00:25,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (13), 2 states have call predecessors, (13), 8 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-21 21:00:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 145 transitions. [2024-11-21 21:00:25,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-21 21:00:25,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:25,315 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:25,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-21 21:00:25,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:25,519 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:25,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:25,520 INFO L85 PathProgramCache]: Analyzing trace with hash 786086104, now seen corresponding path program 1 times [2024-11-21 21:00:25,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:25,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353804551] [2024-11-21 21:00:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-21 21:00:25,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353804551] [2024-11-21 21:00:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353804551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902534650] [2024-11-21 21:00:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:25,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:25,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:25,716 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) [2024-11-21 21:00:25,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-21 21:00:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:25,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-21 21:00:25,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-21 21:00:25,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-21 21:00:26,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902534650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:26,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:26,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 14] total 29 [2024-11-21 21:00:26,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329661620] [2024-11-21 21:00:26,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:26,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-21 21:00:26,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:26,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-21 21:00:26,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-11-21 21:00:26,164 INFO L87 Difference]: Start difference. First operand 128 states and 145 transitions. Second operand has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-21 21:00:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:26,598 INFO L93 Difference]: Finished difference Result 280 states and 321 transitions. [2024-11-21 21:00:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-21 21:00:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-21 21:00:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:26,600 INFO L225 Difference]: With dead ends: 280 [2024-11-21 21:00:26,600 INFO L226 Difference]: Without dead ends: 224 [2024-11-21 21:00:26,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 118 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2024-11-21 21:00:26,602 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 80 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:26,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 344 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-21 21:00:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-21 21:00:26,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 172. [2024-11-21 21:00:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.1517241379310346) internal successors, (167), 144 states have internal predecessors, (167), 15 states have call successors, (15), 12 states have call predecessors, (15), 11 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-21 21:00:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 198 transitions. [2024-11-21 21:00:26,635 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 198 transitions. Word has length 70 [2024-11-21 21:00:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:26,635 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 198 transitions. [2024-11-21 21:00:26,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-21 21:00:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 198 transitions. [2024-11-21 21:00:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-21 21:00:26,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:26,636 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:26,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-21 21:00:26,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-21 21:00:26,837 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:26,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:26,837 INFO L85 PathProgramCache]: Analyzing trace with hash 2133417632, now seen corresponding path program 4 times [2024-11-21 21:00:26,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:26,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256823054] [2024-11-21 21:00:26,838 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-21 21:00:26,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:26,851 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-21 21:00:26,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-21 21:00:26,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:26,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256823054] [2024-11-21 21:00:26,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256823054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:26,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835375581] [2024-11-21 21:00:26,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-21 21:00:26,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:26,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:26,929 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) [2024-11-21 21:00:26,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-21 21:00:26,985 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-21 21:00:26,985 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:26,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 21:00:26,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-21 21:00:27,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-21 21:00:27,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835375581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:27,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:27,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-21 21:00:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148655593] [2024-11-21 21:00:27,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:27,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-21 21:00:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-21 21:00:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-21 21:00:27,160 INFO L87 Difference]: Start difference. First operand 172 states and 198 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:27,297 INFO L93 Difference]: Finished difference Result 296 states and 338 transitions. [2024-11-21 21:00:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 21:00:27,298 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2024-11-21 21:00:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:27,299 INFO L225 Difference]: With dead ends: 296 [2024-11-21 21:00:27,299 INFO L226 Difference]: Without dead ends: 189 [2024-11-21 21:00:27,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 134 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-21 21:00:27,300 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 19 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:27,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 135 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 21:00:27,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-21 21:00:27,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 176. [2024-11-21 21:00:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 149 states have (on average 1.1342281879194631) internal successors, (169), 148 states have internal predecessors, (169), 15 states have call successors, (15), 12 states have call predecessors, (15), 11 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-21 21:00:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 200 transitions. [2024-11-21 21:00:27,327 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 200 transitions. Word has length 72 [2024-11-21 21:00:27,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:27,327 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 200 transitions. [2024-11-21 21:00:27,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:27,328 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 200 transitions. [2024-11-21 21:00:27,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-21 21:00:27,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:27,328 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 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] [2024-11-21 21:00:27,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-21 21:00:27,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-21 21:00:27,529 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:27,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1781876702, now seen corresponding path program 5 times [2024-11-21 21:00:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902852668] [2024-11-21 21:00:27,530 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-21 21:00:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:27,551 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-21 21:00:27,551 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-21 21:00:27,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902852668] [2024-11-21 21:00:27,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902852668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:27,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322617815] [2024-11-21 21:00:27,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-21 21:00:27,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:27,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:27,613 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) [2024-11-21 21:00:27,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-21 21:00:27,673 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-21 21:00:27,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:27,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 21:00:27,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-21 21:00:27,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-21 21:00:27,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322617815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:27,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:27,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-21 21:00:27,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906631249] [2024-11-21 21:00:27,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:27,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-21 21:00:27,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-21 21:00:27,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-21 21:00:27,785 INFO L87 Difference]: Start difference. First operand 176 states and 200 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:28,044 INFO L93 Difference]: Finished difference Result 354 states and 404 transitions. [2024-11-21 21:00:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 21:00:28,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-21 21:00:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:28,046 INFO L225 Difference]: With dead ends: 354 [2024-11-21 21:00:28,046 INFO L226 Difference]: Without dead ends: 234 [2024-11-21 21:00:28,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 136 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=524, Unknown=0, NotChecked=0, Total=756 [2024-11-21 21:00:28,047 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 60 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:28,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 247 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 21:00:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-21 21:00:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 189. [2024-11-21 21:00:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 162 states have (on average 1.1419753086419753) internal successors, (185), 161 states have internal predecessors, (185), 15 states have call successors, (15), 12 states have call predecessors, (15), 11 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-21 21:00:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 216 transitions. [2024-11-21 21:00:28,073 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 216 transitions. Word has length 74 [2024-11-21 21:00:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:28,073 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 216 transitions. [2024-11-21 21:00:28,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 216 transitions. [2024-11-21 21:00:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-21 21:00:28,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:28,074 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 21:00:28,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-21 21:00:28,274 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,SelfDestructingSolverStorable14 [2024-11-21 21:00:28,274 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:28,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:28,275 INFO L85 PathProgramCache]: Analyzing trace with hash 911926688, now seen corresponding path program 6 times [2024-11-21 21:00:28,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:28,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839468092] [2024-11-21 21:00:28,275 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-21 21:00:28,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:28,306 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-21 21:00:28,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 68 proven. 22 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-21 21:00:28,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 21:00:28,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839468092] [2024-11-21 21:00:28,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839468092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 21:00:28,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259489148] [2024-11-21 21:00:28,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-21 21:00:28,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:28,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:28,389 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) [2024-11-21 21:00:28,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-21 21:00:30,500 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-21 21:00:30,500 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 21:00:30,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 21:00:30,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 77 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-21 21:00:30,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 21:00:30,667 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 56 proven. 35 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-21 21:00:30,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259489148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 21:00:30,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 21:00:30,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2024-11-21 21:00:30,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892112012] [2024-11-21 21:00:30,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 21:00:30,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-21 21:00:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 21:00:30,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-21 21:00:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-21 21:00:30,669 INFO L87 Difference]: Start difference. First operand 189 states and 216 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:30,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 21:00:30,830 INFO L93 Difference]: Finished difference Result 275 states and 306 transitions. [2024-11-21 21:00:30,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-21 21:00:30,830 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2024-11-21 21:00:30,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 21:00:30,831 INFO L225 Difference]: With dead ends: 275 [2024-11-21 21:00:30,831 INFO L226 Difference]: Without dead ends: 183 [2024-11-21 21:00:30,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 158 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-21 21:00:30,832 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 23 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 21:00:30,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 253 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 21:00:30,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-21 21:00:30,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-11-21 21:00:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 149 states have (on average 1.1073825503355705) internal successors, (165), 147 states have internal predecessors, (165), 14 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (15), 15 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-21 21:00:30,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2024-11-21 21:00:30,855 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 81 [2024-11-21 21:00:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 21:00:30,856 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2024-11-21 21:00:30,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-21 21:00:30,856 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2024-11-21 21:00:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-21 21:00:30,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 21:00:30,857 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-21 21:00:30,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-21 21:00:31,057 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,SelfDestructingSolverStorable15 [2024-11-21 21:00:31,057 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 21:00:31,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 21:00:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1054227458, now seen corresponding path program 1 times [2024-11-21 21:00:31,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 21:00:31,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877179923] [2024-11-21 21:00:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 21:00:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-21 21:00:31,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223176882] [2024-11-21 21:00:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 21:00:31,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 21:00:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 21:00:31,110 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) [2024-11-21 21:00:31,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-21 21:00:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 21:00:31,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 130 conjuncts are in the unsatisfiable core [2024-11-21 21:00:31,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 21:00:31,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 21:00:31,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-21 21:00:32,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 21:00:32,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-21 21:00:32,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 21:00:32,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-21 21:00:32,883 INFO L349 Elim1Store]: treesize reduction 208, result has 33.5 percent of original size [2024-11-21 21:00:32,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 74 treesize of output 142 [2024-11-21 21:00:34,263 INFO L349 Elim1Store]: treesize reduction 140, result has 38.1 percent of original size [2024-11-21 21:00:34,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 316 treesize of output 337 [2024-11-21 21:00:35,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 43 [2024-11-21 21:00:35,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 154 [2024-11-21 21:00:35,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 98 [2024-11-21 21:00:35,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 150 [2024-11-21 21:00:36,987 INFO L349 Elim1Store]: treesize reduction 124, result has 35.8 percent of original size [2024-11-21 21:00:36,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 298 treesize of output 295 [2024-11-21 21:00:37,400 INFO L349 Elim1Store]: treesize reduction 94, result has 24.8 percent of original size [2024-11-21 21:00:37,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 121 treesize of output 250 [2024-11-21 21:00:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,657 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,658 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,660 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,684 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2024-11-21 21:00:37,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 94 [2024-11-21 21:00:37,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,714 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,716 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,719 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,720 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-21 21:00:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,742 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,745 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,748 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-21 21:00:37,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,766 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,768 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,768 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,769 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-21 21:00:37,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,796 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,797 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,801 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,816 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2024-11-21 21:00:37,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2024-11-21 21:00:37,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,841 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,842 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,844 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,862 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2024-11-21 21:00:37,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 94 [2024-11-21 21:00:37,896 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,900 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,901 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,901 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-21 21:00:37,924 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,928 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,930 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,931 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-21 21:00:37,950 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,952 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-21 21:00:37,976 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:37,979 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,981 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,981 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:37,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-21 21:00:37,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:38,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 21:00:38,005 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:38,006 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:38,010 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-21 21:00:38,030 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2024-11-21 21:00:38,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2024-11-21 21:01:06,485 INFO L349 Elim1Store]: treesize reduction 896, result has 21.1 percent of original size [2024-11-21 21:01:06,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 119 case distinctions, treesize of input 909 treesize of output 967